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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

0–2300 m +
650 m +
Abandoned dwellings, along paths, in meadows +
Abandoned fields, marshes, roadsides +
Abandoned fields, roadsides, lawns +
Abandoned gardens and cemeteries, well-drained short grasslands +
Abandoned gardens and disturbed sites +
Abandoned homesteads, meadows, roadsides, pastures +
Abandoned homesteads, roadsides, meadows, riparian zones +
Abandoned plantings, disturbed sites +
Abandoned plantings, roadsides, edges of bogs, waste places +
Abandoned plantings, roadsides, thickets, waste places +
Abandoned quarries, ditches, marshes, wet forest edges +
Above fjords +
Abundant in hollows and floating mats in raised bogs and poor fens +
Acid bogs or seeps, flatwoods and savanna +
Acid clay or sandy soil in disturbed places, stream banks, ditches +
Acid rock +
Acid rock or sandy soil +
Acid rock or sandy soil in rock crevices +
Acid seeps and springs, high mountains +
Acid soil, semishaded or open woodlands +
Acid soils in deciduous forests, with Kalmia and Rhododendron +
Acid to neutral waters of ponds, lakes, and occasionally streams +
Acid waters of lakes and streams +
Acid waters of ponds, lakes, bogs, and streams +
Acid, gravelly or sandy disturbed soil, ditches +
Acid, gravelly or sandy disturbed soil, path banks, stream banks +
Acid, gravelly to sandy soil along trails +
Acid, sandy disturbed soil, path banks, stream banks +
Acid, sandy, moist savanna and cleared areas +
Acid, sandy-peaty pine flatwoods, seeps, bogs, coastal plain +
Acidic and calcareous rocks, soil, very rarely tree bark, open forests +
Acidic bogs and swampy woodlands, Atlantic and Gulf coastal plains +
Acidic cliffs, rock outcrops, boulders in woods +
Acidic marine sands +
Acidic ponds +
Acidic rock +
Acidic rock faces, occasionally thin soil +
Acidic rock in montane and subarctic areas +
Acidic rock in montane or high latitude streams +
Acidic rock in snow beds +
Acidic rock in streams +
Acidic rocks +
Acidic rocks, usually on steep ledges +
Acidic sedimentary and basaltic metavolcanics +
Acidic sedimentary rocks +
Acidic seepy or damp soil, soil over rock, ledges +
Acidic soil +
Acidic soil of suburban and urban woodlands and hardwood hammocks +
Acidic soils, in dry to mesic forests, seeps, sphagnum bogs +
Acidic sunny wetlands, mostly pond shores, seeps, bogs, marshlands +
Acidic swamps, low woods, thickets +
Acidic waters of ponds, lakes, and streams +
Acidic, moist or periodically dry, shady or exposed sites +
Acidic, sandy, peaty hardwood or Chamaecyparis swamps, thickets +
Active and stabilized siliceous and gypseous dunes and sandy soils. +
Active sand dunes +
Active sand dunes, shrubby tundra +
Adobe soil +
Adobe soil of interior foothills +
Aeolian and colluvial sand, desert sand dunes and scrub. +
Aggressive weed of waste ground, pastures, roadsides, fields +
Aggressive weed of waste ground, rangelands, pastures, roadsides, fields +
Agricultural lands, roadsides, railways, other disturbed areas. +
Alder thickets, lake and stream sides, bracken fern slopes +
Alien weed of cultivated land +
Alkali flats +
Alkali sink scrub or alkaline grasslands +
Alkaline and saline meadows +
Alkaline and saline soils +
Alkaline areas, desert shrub communities, canyons +
Alkaline clay flats, saltbush communities +
Alkaline clay soil in floodplains and moist open meadows +
Alkaline flats +
Alkaline flats, canyons, meadows +
Alkaline flats, depressions +
Alkaline flats, grasslands, barren areas, high plains +
Alkaline flats, gullies, or fields, saline vernal flats, grassy fields +
Alkaline flats, saline meadows and marshes +
Alkaline flats, springs, meadows +
Alkaline flats, valley grasslands, deserts +
Alkaline flats. +
Alkaline grasslands, hotsprings, ditches, brackish marshes +
Alkaline grasslands, often on clay soils +
Alkaline grassy flats, sagebrush scrub, openings in pine forests +
Alkaline grounds and flats, meadows +
Alkaline marshes, hot springs, seeps, stream banks, shores, dune swales. +
Alkaline marshes, mud flats, meadows, hot springs +
Alkaline marshes, swamps, springs +
Alkaline marshes, wet saline soils around thermal springs +
Alkaline meadows and flats +
Alkaline meadows and flats. +
Alkaline meadows, edges of alkali barrens or sinks +
Alkaline meadows, grassy and shrubby openings in pine forests +
Alkaline meadows, hillsides, roadsides +
Alkaline meadows, lake margins, roadsides, ditches +
Alkaline meadows, open fields, around hot springs and boggy areas +
Alkaline meadows, springy places in creosote bush scrub +
Alkaline or gypseous soils +
Alkaline places, mud flats, stream beds, sandy places +
Alkaline plains, edges of alkali sink +
Alkaline playas, flood plains, deep sands +
Alkaline sandy flats and slopes, saltbush communities +
Alkaline sandy flats, matorral, shrublands +
Alkaline seeps, grasslands, moist alkaline valley bottoms +
Alkaline soils of washes and playas +
Alkaline soils, desert washes, flats +
Alkaline soils, floodplains, vernal pools, meadows, marshy ground +
Alkaline springs and seeps +
Alkaline valleys and plains +
Alkaline waters of lakes and slow-moving streams +
Alkaline waters of lakes, streams, and rivers +
Alkaline waters of marshes, ponds, lakes, and slow-moving streams +
Alkaline waters of ponds and lakes +
Alkaline waters of streams, rivers, lakes, ponds, and sloughs +
Alkaline, clay badlands, mat saltbush communities +
Alkaline, often barren slopes and flats, saltbush communities +
Alkaline, wet or dry meadows +
Alluvial and rocky slopes. +
Alluvial areas, foothill woodlands, forest edges +
Alluvial fans and rocky slopes in deserts +
Alluvial fans, sandy flats, rocky hillsides, grassy valleys, canyons +
Alluvial flats, along streams, woodlands +
Alluvial flats, open areas, sandy soil, weedy sites. +
Alluvial margins of slightly brackish rivers and streams +
Alluvial or calcareous soils, often in moist, shaded places +
Alluvial or shingly calcareous shores and talus +
Alluvial plains, meadows, light, well-drained prairie soils +
Alluvial slopes and flats, with Ambrosia dumosa and Larrea. +
Alluvial soil in Juniper grassland +
Alluvial soils along rivers and streams +
Alluvial stream shores +
Alluvial woodlands +
Alluvial woods and sheltered valleys, piedmont +
Alluvial woods, margins of deciduous woodlands, fencerows, waste places +
Alluvial woods, river and stream banks, wet meadows, marshes, ditches. +
Alluvial woods, swales, sandy wooded bottomlands +
Alluvial woods, swamp forests +
Alluvial, riparian, and coastal habitats, mostly as a ruderal species +
Alluvium of mudstone, shale, and sandstone formations +
Along creeks and rivers +
Along creeks, open to heavily timbered slopes, sagebrush +
Along edges of ponds and small streams, often in standing water +
Along margins of woodlands and disturbed sites +
Along or near Atlantic coast on dunes and open sandy places. +
Along stream banks, river flood plains, and on well-drained soils +
Along streams +
Along streams and in meadows +
Along streams and on moist canyon slopes +
Along streams and river valleys +
Along streams and rivers in montane, subalpine, and alpine zones +
Along streams and rocky canyon sides +
Along streams or roadsides on exposed fine sandy soil +
Along streams or slopes +
Along streams or waterfalls on rock, humus, moist granite cliffs +
Along streams, flood plains +
Along streams, in forest thickets, chaparral +
Along streams, in marshy areas, moist woods +
Along streams, lakeshores, margins of woods, meadows, open rocky slopes +
Along streams, moist slopes in canyons, mixed oak-pine-juniper woodlands +
Along streams, other wettish sites +
Along streams, roadsides, railroad embankments, disturbed sites +
Along streams, sometimes on disturbed slopes +
Along wooded streams and other swampy places, usually shaded by trees +
Alpine and arctic tundra, rocky slopes, often in gravelly or peaty soil +
Alpine and subalpine meadows +
Alpine and subalpine meadows, fell-fields +
Alpine and subalpine meadows, heaths, talus slopes +
Alpine and subalpine meadows, talus slopes, streambanks +
Alpine and subalpine meadows. +
Alpine and subalpine rock crevices, vertical faces, talus slopes +
Alpine and subalpine rocky sites and talus slopes +
Alpine areas above treeline, mountains +
Alpine areas, wet meadows, lake margins +
Alpine bogs, wet meadows. +
Alpine fellfields, moist gravel, talus, on dolomite and quartzite +
Alpine fellfields, subalpine forests, sometimes red fir forests +
Alpine fellfields, talus slopes. +
Alpine fellfields, talus, open pine woodlands +
Alpine forest clearings and edges. +
Alpine habitats +
Alpine heath and rocky soils on mountain slopes +
Alpine heath, dry slopes, timberline, moraines, tundra +
Alpine limestone ridges and slopes +
Alpine meadows +
Alpine meadows, dry rocky slopes and ridges, alpine tundra +
Alpine meadows, fellfields +
Alpine meadows, glades, open subalpine coniferous forest. +
Alpine meadows, open rocky barrens, conifer woods +
Alpine meadows, open tundra +
Alpine meadows, protected areas, bases of rocks +
Alpine meadows, rocky slopes, grassy openings in pine-fir forests. +
Alpine meadows, rocky slopes, subalpine or alpine +
Alpine meadows, subalpine coniferous woods, talus slopes +
Alpine meadows, talus slopes, aspen woods +
Alpine meadows, tundras, and calcareous rocky outcrops +
Alpine meadows. +
Alpine or subalpine lakes and ponds +
Alpine peaks +
Alpine ridges, fellfields, scree slopes, rocky canyons +
Alpine ridges, gravel slopes, talus +
Alpine ridges, scree slopes. +
Alpine ridges. +
Alpine rock ledges +
Alpine rocky slopes and crevices +
Alpine scree slopes. +
Alpine serpentine barrens, crevices and ravines +
Alpine slopes and ridges to Arctic tundra +
Alpine slopes and subalpine meadows +
Alpine slopes and tundra, arctic tundra, rich arctic seaside bluffs +
Alpine slopes, meadows, shores of lakes and streams +
Alpine slopes, ridge crests, rocky lakeshores +
Alpine slopes, tundra, stony ridges +
Alpine stream banks and meadows, lake shores +
Alpine talus or other steep, dry, sparsely vegetated slopes +
Alpine talus slopes, alpine meadows. +
Alpine talus, gravel slopes, boulder fields. +
Alpine taluses +
Alpine to subalpine moist or wet places +
Alpine to subalpine sites, open or semibarren soil +
Alpine tundra +
Alpine tundra and fellfields, mostly on dolomite substrates +
Alpine tundra and meadows, rocky slopes, talus +
Alpine tundra meadows. +
Alpine tundra or just below treeline, in moist, open, gravelly areas +
Alpine tundra, cirques, lake basins, rocky slopes and ridges, fellfields +
Alpine tundra, fellfields, gravelly wet meadows +
Alpine tundra, fellfields, talus slopes, cliffs, usually on limestone +
Alpine tundra, moderate to high elevations (ca. 0–4200 m) +
Alpine tundra, patches of turf in talus +
Alpine tundra, talus slopes +
Alpine tundra, wet talus slopes, rocky areas +
Alpine tundra, windswept ridges, stony meadows +
Alvars (limestone flats), openings in woods +
Among boulders and rock crevices +
Among rocks +
Among rocks (usually serpentinite) on open brushy or wooded hills +
Among rocks and on north-facing cliffs +
Among rocks, stream banks, canyons +
Among wet rocks in and near streams +
Apparently on soil +
Apparently restricted to serpentine clays on ridges and peaks +
Aquatic habitats, banks or bed of streams and rivers, on rock +
Aquatic or in wet sand or mud +
Aquatic to semiaquatic, lakes and ponds +
Arable land, disturbed ground +
Arable land, pastures, roadsides, sand dunes +
Arable land, roadsides +
Arable land, roadsides, waste land +
Arable land, waste places, roadsides +
Arctic and alpine meadows, peatlands, mossy banks of brooks +
Arctic and alpine meadows, tundra, balds, moraines, and subalpine woods +
Arctic and alpine tundra and heathlands, meadows, and subalpine woods +
Arctic and alpine tundra and sandy slopes +
Arctic and alpine tundra, fell-fields +
Arctic and alpine tundra, gravelly and grassy places +
Arctic and alpine tundra, gravelly, often wet places, rocky ledges +
Arctic and alpine tundra, interior mountains +
Arctic and alpine tundra, mountain ledges, rock crevices +
Arctic and alpine tundra, on or near dry rocky outcrops or sand ridges +
Arctic and alpine tundra, sandy, rocky slopes near shorelines +
Arctic and alpine tundras. +
Arctic and subarctic, coastal sandy gravel spits +
Arctic coasts, alpine meadows, stream banks, taigas. +
Arctic meadows and thickets, muskegs, arctic and alpine tundras. +
Arctic meadows, tundras. +
Arctic seashores, soil banks, on silt or clay +
Arctic tundra in gravel and clay +
Arctic tundra, gravelly and grassy places +
Arctic tundra, mountain stream banks +
Arctic, coastal beach ridges, sand spits, tundra meadows +
Arctic, coastal sandy gravel spits +
Areas with loose pumice +
Arid areas, sand, limestone, caliche, shale. +
Arid grasslands in hilly country, sagebrush or alkaline flats. +
Arid grasslands on sandy soils +
Arid grasslands, semideserts, open woodlands. +
Arid grasslands. +
Arid habitats, disturbed sites, sometimes open, sometimes shady +
Arid habitats, hillsides, plains, canyons +
Arid hillsides, along water courses +
Arid plains and mountains +
Arid rocky hillsides, sagebrush scrub +
Arid rocky limestone slopes, cliffs, Chihuahuan Desert +
Arid rocky plains, desert mountain cliffs, crevices +
Arid rocky slopes, desert washes. +
Arid rocky slopes, primarily limestone +
Arid shrublands +
Arid shrublands, often on limestone +
Arid slopes and valleys +
Arid slopes and valleys, sands or clays, sometimes saline soils +
Arid soil, rock +
Arid soils and rocky slopes +
Arid to moist summit elevations, montane forests +
Arid, well-drained, often rocky, igneous, calcareous, or gypseous soils +
Around ponds and ditches, in meadows, roadsides, and open woods +
Around ponds, lakes, and bogs, swampy meadows +
Around settlements +
Around solution holes of rockland hummocks, greenhouse weeds +
Around springs, steep slopes. +
Arroyo and canyon bottoms, rocky slopes. +
Arroyos +
Arroyos, disturbed roadsides +
Arroyos, knolls, steep slopes, gypsum and limestone clay and shale. +
Arroyos, on limestone +
Arroyos, riverbanks, clearings in montane forests +
Arroyos, sandy streambeds, pond edges, potholes, other moist, open sites +
Arroyos, washes, alkaline bottoms and meadows, dry hillsides +
Artemisia scrub, open pine woods, chaparral +
As large clones in mesic mire. +
"Shrubby plants forming a dense thicket on the slope of Bolinas Ridge above Stinson Beach" (J. T. Howell 1970) +
A common weed in grassy places: lawns, roadsides, pastures, open woodlands, wastelands +
A commonly grown rock-garden and wall plant, often escaping onto roadsides, riverbanks, old fields +
A pioneer species, bare clay, sandy or gravely soil banks, wooded clearings, trails, roads and other often disturbed habitats +
A range of soils, fields, woods and usually wet grounds, along water courses +
A wide variety of habitats from desert, cliffs, talus, and moist shaded areas under aspen, junipers, or pinyons, often in riparian habitats +
Abandoned agricultural fields, fields, roadsides, disturbed sites, trash heaps +
Abandoned fields and waste areas, roadsides, and open woods, in disturbed, often sandy soil +
Abandoned or naturalized in thickets, forests, fields, fence edges, shores, roadsides +
Abundant in coniferous and deciduous forests, especially in forest margins +
Abundant in poor fens and raised bogs, forming dense carpets at water level, especially on floating mats +
Acid or neutral substrates at summit of cool, shale talus slopes, and on granitic cliffs and outcrops +
Acid sandy flatwoods, sandy shores, swales in pinelands, bog edges, coastal plain +
Acid soils, open dry or rich woods, laurel and rhododendron thickets, cove forests +
Acid swamps to moist broadleaved forests, especially along streams, in ravines, or near springs +
Acid swamps, bogs, seepage slopes, pocosins, streamheads and baygalls, wet pine flatwoods, moist pine or pine/oak forests, hummocks, shrub balds +
Acid, gravelly or sandy disturbed soil, path banks, stream banks, peaty soil +
Acid, oligotrophic waters of lakes, ponds, ditches, and streams, usually in shallow waters but to 2.5 m deep +
Acid, relatively humus-rich soil, alpine tundra, stream banks, path banks +
Acid, relatively humus-rich soil, alpine tundra, stream banks, path banks, heavy metal mine tailings +
Acid, sandy, moist pine or oak savanna, pine flatwoods, pond shores, ditches, bogs +
Acid, sandy, peaty flatwoods, clearings, disturbed moist sands, coastal plain +
Acid, sphagnous, boggy, open sites, poor fens, often on floating mats or peaty interstices of rocky shores +
Acidic bogs, seeps, and wet woods, rarely on rock of siliceous cliffs and ledges on northern edge of range +
Acidic cliff crevices, rocky banks, calcareous soil, soil on overturned tree roots, base of trees, decaying wood +
Acidic freshwater pondshores, blackwater stream banks, cypress savannas, acidic wetlands, swamps. +
Acidic or alkaline ponds, lakes, sluggish streams and rivers, pools in marshes, ditches, canals, or sloughs +
Acidic rock in irrigated streams, on shaded, irrigated cliffs and boulders +
Acidic rocks (granite, sandstone), exposed boulders, rarely on soil in open woods +
Acidic rocks such as sandstone, basalt, and granite, very rarely on calcareous rocks +
Acidic rocks, boulders and cliffs, as well as on soil or gravel, often in late snow areas, on stony mossy tundra, stony slopes and granite rock underhangs on talus slopes, mostly in exposed, dry or moist sites +
Acidic rocks, boulders, cliff faces and bluffs in dry and exposed to shaded and wet sites, in seepage areas, mesic woodlands and on rocks along streams and creeks and on lake shores +
Acidic rocks, stones and boulders, rock outcrops and ledges, hillsides, cliffs, dry and exposed, less often shaded and damp sites, occasionally on sandy soil or thin soil accumulated on rock faces +
Acidic sandy loam on bluffs and in ravines in deciduous forests, often associated with Kalmia latifolia +
Acidic sandy soil and acidic rocks (sandstone, granite), rock crevices, exposed, dry habitats +
Acidic soil in swamp forests and forest openings, open seeps, sandy and peaty pond shores, uncommon and local +
Acidic soil of bogs and boggy meadows, open swamp forests, peaty or sandy pond and lakeshores, seeps +
Acidic soils in fens, bogs, pine and oak savannas, grasslands, interdune swales +
Acidic soils in low, swampy woodlands along streams, red maple (Acer rubrum) swamps, very wet in spring, plants often grouped on hummocks, possibly with sphagnum moss +
Acidic soils in seepage bogs ("hillside bogs," "pitcher-plant bogs"), along blackwater streams, depressions in pine savannas +
Acidic soils of rocky, dry woods, thickets, and clearings, in partial shade of mixed hardwood-pine forests or full sun along open roadsides and clearing edges, often adjacent to streams +
Acidic soils, in dry to mesic 2d-growth, d … Acidic soils, in dry to mesic 2d-growth, deciduous or deciduous-coniferous forests, typically light to moderate leaf litter, open herb layer (occasionally in dense ferns), moderate to light shrub layer, relatively open canopy, frequently on flats or slope bases near canopy breakson flats or slope bases near canopy breaks +
Acidic soils, often along creeks beneath Rhododendron maximum, deciduous or mixed deciduous-conifer forests +
Acidic thickets or bogs, swampy to dry, rocky woods, bluffs, ravines, or along streams +
Acidic to alkaline ponds, lakes, pools in marshes, rivers, streams, ditches, canals, and reservoirs +
Acidic to basic rocks, such as limestone, … Acidic to basic rocks, such as limestone, granite, diorite, basalt, serpentine, schist, and sandstone, concrete walls of buildings, sandy or clayey soil, humus, tree trunks and bases, in a wide range of habitats, from protected, shaded and damp or wet to open, fully or diffusely lit and dry in coastal mixed and coniferous forests, woodlands, grasslands, forest glades, also on the banks of streams, creeks and lakes and by waterfalls, usually in places above the flood line, but sometimes in occasionally submerged sites or on pockets of sand in stream beds, outcrops in fens, partially drained bogs, seepage, roadcuts and earthy roadside bankseepage, roadcuts and earthy roadside banks +
Acidic to neutral clays, often high in potassium and magnesium, in moist to dry mesic, open, deciduous forests, ravines +
Acidic waters of bogs, ponds, and lakes, often at higher elevation in e portion of range +
Acidic, dry mesic, open, oak-dominated woodlands, often on ridges and slopes +
Acidic, dry sandstone, shale, and granitic boulders and bedrock exposures but also found on volcanic outcrops and granodiorites +
Acidic, oligotrophic environments, with Sphagnum species on hummocks and turfs +
Acidic, sandy or organic substrates on open, emergent shorelines, not found on lime-rich soils +
Agricultural lands, open pinelands, meadows, waste ground, wet or dry soil +
Alkali flats, brackish beaches, bare bottomlands, lake shores, dried-up pools, somewhat akaline clay flats +
Alkaline and acid tamarack, red maple and cedar swamps, peatlands, bogs, fens, disturbed areas, riparian thickets, lakeshores, ditches, fencerows, hedgerows, low woods, beaver meadows. +
Alkaline clay soils, volcanic tuff, dry foothills, among junipers, in sagebrush scrub, fields, railroads +
Alkaline flats and sinks, meadows, pastures, dry vernal pools, fields, sandy beaches, grassy area, gravelly slopes, creosote bush desert +
Alkaline flats, dry lake beds, with Suaeda, Atriplex spp., and other salt-tolerant species +
Alkaline flats, plains, meadows, brushy hillsides, alpine areas, foothills, mountain slopes, ridges, dry knolls, grassy areas +
Alkaline grounds and flats, desert shrub communities, barren hillsides, mineralized grounds near hot springs +
Alkaline meadows and desert flats, mineralized ground near hot springs, desert shrub communities +
Alkaline or saline soils in semiarid or arid plains, alkali flats, slopes, desert-shrub communities, sagebrush, saltflats, roadsides, fencerows, dry washes +
Alkaline or saline, typically fine-textured substrates, often on shale or clay barrens, sometimes with other Atriplex spp., sagebrush, and grasses +
Alkaline sink scrub, growing with Atriplex polycarpa and other salt desert shrubs and forbs +
Alkaline soils in semiarid or arid plains, flats, or slopes, mixed shrublands +
Alkaline soils, deserts, semideserts, eroded mountain slopes, other marginal habitats +
Alkaline soils, mostly on raised sandy hummocks in salt playas and mud flats +
Alkaline soils, semideserts and deserts, dry lake margins, eroded mountain slopes, sometimes disturbed seminatural habitats +
Alkaline soils, used for windbreaks, roadside cover and ornamentals, mainly occurring along the drainages of the Gila and Rio Grande rivers +
Alkaline valleys, marshy areas, valley grasslands, coastal sage scrub, sometimes ruderal weed +
Alkaline, saline and gypseous, clay and sandy clay to loam soil, hillsides and saline flats +
Alkaline, saline, and gypseous places of the interior, mostly in deserts, occasionally coastal, rarely estuarine +
Alluvial and other woodlands, light shade, open areas, calcareous or mafic rock, uplands +
Alluvial and swamp forests, stream banks, riparian meadows, moist and seeping slopes, marshes, roadside banks, ditches, old fields +
Alluvial and swamp forests, stream banks, seeping slopes, marshes, sphagnum bog forests, mesic wooded slopes, old fields +
Alluvial bottoms and swamps, forests, roadsides, railroad rights-of-way, fields, ditches, and lawns +
Alluvial flatwoods and streamsides in rich woods, low pastures, and edge of bottomland forests +
Alluvial forests, fertile and mesic upland forests, rocky slopes, bluffs, cliffs, and shaded rock outcrops of sandstone, shale, limestone, quartzite, and other kinds of rocks, usually wooded habitats including stream banks, gullies, rocky slopes, ledges +
Alluvial forests, riparian thickets, wet meadows, wet prairies, seeps, salt marshes +
Alluvial forests, wet wooded flats, stream banks, seeping slopes, marshes, moist prairies, old fields and pastures, ditches, thickets +
Alluvial gravels, calcareous silts, sagebrush shrublands, pinyon-juniper woodlands. +
Alluvial or moist, deciduous woods, swamps, bogs, marshes, wet meadows, ditches +
Alluvial soils in low, moist, hardwood forests or mixed hardwood-coniferous forests, shrub swamps, sphagnum bogs, requires soil that remains cool throughout summer, with high degree of acidity +
Alluvial soils in moist willow thickets subject to intermittent flooding along streams, montane to subalpine zone +
Alluvial soils, floodplains, rocky upland woodlands, brushy thickets, canebrakes, heavy shade, or thin, open woods +
Alluvial soils, open floodplain forests, open hardwood flatwoods, marsh margins, low prairies, wet depressions. +
Alluvial woods and deciduous woodlands, especially dry, acidic woodlands and glades, along fencerows, waste areas, planted as street trees +
Alluvial woods on floodplains, swamps, hummocks, marshes, wet interdunal depressions, rocky or gravelly streambeds, ditches, canals, usually on calcareous substrates +
Alluvial woods, margins of deciduous or mixed woodlands, fencerows, waste places +
Alluvial woods, mesic forests on slopes near streams, wet fields, salt meadows +
Alluvial woods, swamp forests, deciduous woodlands, fencerows, pastures, old fields, waste areas, planted as street trees +
Alluvial, riparian, and ruderal habitats, shores, marshes, bogs, wet meadows, dry streambeds +
Almost always with sporophytes. Most often in deciduous forests, on humus in moist, shady calcareous sites, northwards in forested localities, especially along major rivers, and as an adventive in disturbed sites such as lawns, golf courses or cemeteries +
Almost any wooded habitat with acid surface conditions, most frequent on moist humus soils in shady, upland woods of hemlock, pine, oak, or maple, less frequent in lowland woods, bogs, swamps +
Along ditches, damp areas, shores of ponds and lakes, sandy beaches, waste grounds, ditches, wet roadsides, meadows, washes, fields, gardens +
Along gravelly or rocky stream banks, lakeshores, and coasts, on moist rocky slopes, outcrops, in open coniferous woodlands +
Along streams and banks in prairies, wet meadows, open conifer forests in montane zone, often calcareous soils, roadside ditches +
Along streams and lakes, usually in mesic soils, on dunes, also cultivated +
Along streams in swamps, floodplain woodlands, cabbage palmetto hummocks, wet ditches, wet and mucky soil, often in shade +
Along streams, around lakes, marsh edges, saline soils near irrigation, old fields +
Along streams, ditches, seepage areas, around ponds and lakes, forests, woodlands +
Along streams, lakes, springs, marsh margins, sandy-gravel, sandy or silty substrates +
Along streams, lakeshores, meadows, forest openings and edges, wooded to open slopes +
Along streams, marshes, swamps, seeps, springs, wet meadows and woods, pond and lake margins. +
Along streams, roadsides, clearings, disturbed sites, rocky soils, coniferous woodlands +
Alpine and coastal Dryas-Salix-Empetrum heaths, gravelly slopes, ridge crests, fellfields, scree and talus +
Alpine and montane slopes, moist montane coniferous forests, canyons, meadows, lake margins +
Alpine and subalpine areas, gravel and sand bars, scree, grassy slopes, prairies, steep rocky slopes, roadsides, disturbed sites, waste grounds, meadows, spruce-fir, pine, aspen, or sagebrush communities +
Alpine and subalpine meadows and slopes, open woods, steep slopes and cliffs, mossy mats, dry or moist slopes and hillsides, ridge crests +
Alpine and subalpine meadows, streams, lakeshores, talus slopes, granite substrate +
Alpine crests, open knolls, fellfields, talus, weathered shale, calcareous shale scree, rocky grounds and cliffs, subalpine conifer forests +
Alpine fellfields, decomposing marble, gravelly ground and knolls, rocky slopes, talus, granitic sand +
Alpine grassy, gravelly, or rocky slopes and ridges, openings in subalpine forests, sagebrush, and on juniper slopes +
Alpine meadows and rocky places, high prairies, open montane woodlands and forests +
Alpine meadows and slopes, stream banks, wet rocks in streams, wet crevices, talus. +
Alpine meadows, snow beds, open gravel and silt, seepage areas, stream and lake margins, shady taluses, ravines or cliffs +
Alpine meadows, usually in wet or moist areas, lake edges, clearings in subalpine pine-fir woods, sometimes along ridges +
Alpine meadows, wet spots on rocky cliffs and slopes, montane streamsides, coastal bogs +
Alpine or subalpine slopes, meadows, rocky crevices, rocky and gravelly soil in valleys, steep slopes, knolls +
Alpine rocky limestone slopes, heath meadows, dry gravel, mesic tundra meadows, outwash plains +
Alpine scree, rocky ridges, talus slopes, volcanic sands and gravel, serpentine gravel, granitic slopes, mountain shrub, subalpine fir, and whitebark pine communities +
Alpine slopes and heaths, dry or damp situations among grasses, herbs, or lichens, and in subalpine forests +
Alpine slopes, ridges, outcrops, talus, gravelly slopes, often with whitebark pine +
Alpine slopes, rocky seepage slopes, montane forest meadows, rolling grasslands, dry prairies, coulee margins, rocky riverbanks and lakeshores, roadsides, disturbed areas +
Alpine snowbeds, meadows, talus slopes and open dry pool beds in spruce-fir forests +
Alpine to subalpine rocky slopes and talus, granitic or volcanic substrates +
Alpine tundra and meadows, boulder piles, gravelly slopes, stabilized talus +
Alpine tundra, on wet gravels, rocky ledges, often in mossy turf or moss hummocks, usually uncommon +
Alpine tundra, scree, ridges and alpine slopes, turf, fellfields, talus slopes, crevices in rock ledges, loose soils +
Alpine turf slopes, wet spruce-birch forests, bogs, gravel beaches, stream bars, dry areas +
Alpine zones, moist to mesic gravelly sites, arctic tundra, moist to well-drained, exposed areas with low organic content, on rock, gravel, sand, silt, clay, till, or moss, calcareous or not, seldom on sea beaches or areas exposed to salt spray +
Alpine, stream banks, disturbed sites, roadsides, meadows, sagebrush and juniper communities, open woods, rocky cliffs, sandy areas, talus slopes +
Always on somewhat shaded humid rock surfaces, especially sandstones, conglomerate, and schist +
Among rocks, boulders, on talus slopes, bluffs, crags, canyons, disturbed roadsides, in volcanic, limestone, and sandstone substrates +
An understory tree of well-drained, sandy soils, on ravine heads (pocosins, steepheads) +
Andesitic dikes in otherwise rhyolitic rock, bedrock cracks in open areas, upper montane to subalpine conifer forests +
Appalachian deciduous forest, often at edges of forest in somewhat disturbed sites +
Aquatic to semiaquatic in swamps, bogs, canals, ponds, lakes, ditches, marshes +
Aquatic to semiaquatic, in swamps, bogs, canals, ponds, lakes, ditches, marshes +
Arctic and alpine meadows and slopes, usually around persistent snow patches +
Arctic and alpine tundra meadows, heaths, fellfields, mineral soil, rock, near tree line under spruce, cirque headwalls, deep shaded canyons +
Arctic and alpine tundra, acidic rocky slopes and barrens, muskegs, peat bogs, stream banks, open subalpine summits +
Arctic and alpine tundra, forming mats on exposed sites with mineral soils +
Arctic and alpine tundra, heathlands, coniferous forests, boreal forests and woodlands +
Arctic and alpine tundra, meadows, open woodlands, rocky slopes, talus, cliff ledges, river and roadside gravel +
Arctic and alpine tundra, mountain ledges, rock crevices, calcareous gravel, raised beach ridges +
Arctic and alpine tundra, on dry rocky outcrops, fell fields, or gravelly frost boils +
Arctic and alpine tundra, rocky barrens and heaths or thickets, raised beach ridges, sandy stream banks +
Arctic and alpine tundra, snowbed slopes, pond and stream margins, boulder ridges in streambeds, heaths, ledges, dry gravelly slopes +
Arctic and mountain areas, dry grassy slopes, open woods, sagebrush, rocky outcrops, talus, gravel flats +
Arctic and possibly subarctic, shores of lakes and lagoons, Empetrum tundra, in moss on rocky pavements, meadows, beach ridges +
Arctic boreal and subalpine thickets, stream and lake margins, tundra, black spruce-lichen woodlands, open white spruce-dwarf birch woodlands +
Arctic lowlands to rocky ridges and gravelly, montane, calcareous slopes in arctic and alpine tundra, heath and open woods, ± coastal gravelly limestone barrens in the Gulf of St. Lawrence area +
Arctic marshes, damp tundra, alluvial river beds, dessicated ponds, inland nunataks +
Arctic marshes, snow patches, moist areas or seepage slopes, with high organic contents, shores of rivers and brooks (south) +
Arctic or alpine tundra, soil, humus or rocks, sometimes in bogs and fens +
Arctic screes, fellfields, gravelly tundra, rocky knolls on wide variety of rock types +
Arctic tundra and alpine meadows with permanently moist gravel, especially around persistent snow patches near streams, ponds, and lakes +
Arctic tundra and solifluction areas, talus slopes, beaches, coastal grassland and seepage areas, exposed rocky headlands +
Arctic tundra meadows, hummocks, polygon edges, organic or mineral soil, calcareous sites, deep canyons +
Arctic tundra, moist alpine-subalpine slopes, streams, marshes, edges of moist forests, gravelly or sandy roadsides +
Arctic tundra, moist spruce forests, stream banks, moist open meadows, sphagnum bogs and swamps +
Arctic, alpine, subalpine, and boreal meadows and riverbanks, streams, seeps, snowflush areas, treed bogs, fens, sandy-loam, rocky igneous and limestone substrates +
Arctic, grassy slopes, moist areas, upland tundras, rocky alpine tundras, stream banks. +
Arctic, subarctic, and alpine, wet sedge meadows, hummocky tundra, raised center polygons, Dryas-willow-sedge tundra, Dryas mats on dry ridge tops +
Arctic, subarctic, subalpine and boreal, stream terraces and floodplains, open forests, wet sedge meadows, fens, drumlin fields, gravel ridges, bogs, cliff ledges, snowbeds, silt, sand and gravel, calcareous or igneous substrates +
Arctic-alpine tundras, heathlands, subarctic, moist hummocky tundras, hummocks, open white spruce and tamarack forests. +
Arctic-alpine, Dryas heath tundra, dwarf birch-lichen tundra, sandy lakeshores, snowbeds, rock stripes or gravel, wet seepage areas, sedge meadows, willow-dwarf birch-sphagnum bogs, limestone and shale substrates +
Arctic-alpine, Dryas tundra and willow thi … Arctic-alpine, Dryas tundra and willow thickets along streams, sedge-grass tundra, sandy, saline coastal flats, beach cobbles, Empetrum-lichen heath on wet slopes, upland shrubby tundra, polygonal tundra and raised center polygons, snowbeds, scree and colluvial slopes, substrates from clay to coarse rubble, both calcareous limestone and acidicbble, both calcareous limestone and acidic +
Arctic-alpine, Dryas tundra, Empetrum tussock tundra, sedge-shrub tundra, grassy tundra, moss tundra on alluvial fans and floodplains, dry and windswept ridges, moist scree, talus slopes, limestone substrates +
Arctic-alpine, dry Dryas-lichen tundra, polygonal tundra with stone stripes and dry raised centers, scree and colluvial slopes, grass-sedge tussock tundra, sedge meadows in drainage ways, dwarf birch thickets, granitic and sandstone substrates +
Arctic-alpine, moist late snowbed and snowflush areas, talus and scree slopes, sides of depressed center frost polygons, sedge meadows, and mud boils, calcareous tills, sandy marine silts +
Arctic-alpine, polygonal tundra, dry tussock tundra, partially stabilized sand dunes, sedge meadows, Dryas tundra on alpine cliffs and ledges, snowbeds, stabilized talus slopes, white spruce woods, treed bogs +
Arctic-alpine, subarctic, hummocks in wet, mossy, grass or sedge meadows, margins of streams or ponds, among granite boulders, on alluvial plains, sometimes in snowbeds +
Arctic-alpine, wet to mesic or dry habitat … Arctic-alpine, wet to mesic or dry habitats, including hummocks in wet Sphagnum bogs and sedge meadows, polygonal tundra, solifluction slopes, snowbeds, margins of pools, beach ridges, shale and gypsum ridges, gneissic cliffs, colluvial slopes, talus slopes, glacial moraines, imperfectly drained calcareous silty till, muddy salt flats, frost-heaved clay polygons, dry calcareous gravel, coarse sandy soil, dry calcareous gravel, coarse sandy soil +
Areas of flat rocks, especially openings in cedar glades, ledges of cliffs, and bluffs, in shallow soil or in living mats of moss on rocks, often on limestone, sandstone, and chert +
Areas submerged at flood level, base of trees or shrubs, willows, edges of ponds or stream valleys +
Arid montane scrub, hardwood or pine-oak woodlands, yellow pine-fir forests, limestone and rhyolitic substrates, canyons, open slopes, bluffs, canyons. +
Arid scrub zones, Great Basin and Mojave deserts, pinyon-juniper, Joshua tree woodlands +
Arid slopes, roadsides, grasslands, sagebrush scrub, dry woodlands, montane forests +
Arid slopes, roadsides, grasslands, sagebrush scrub, pinyon-juniper woodlands, montane coniferous forests +
Arid, rocky, sandy, or clay slopes of basaltic origin, sagebrush steppes. +
Arizona Upland Subdivision of Sonoran Desert, exposed slopes, bajadas, hills, mountains, desert scrub, igneous and sedimentary substrates +
Arizona Upland Subdivision of Sonoran desert scrub, low gravelly hills, bajadas, and rocky hilltops, igneous substrates +
Around bases of trees, decaying wood, infrequently on soil, cypress-gum swamps +
Around ponds and marshes, in wet depressions in sagebrush and less commonly on river margins +
Arroyo and canyon bottoms, grasslands, desert scrub, riparian cottonwood and willow vegetation. +
Arroyos, embankments, in oak scrub and pine forests, rarely adventive in desert arroyos below mountains +
Aspen groves, ponderosa pine, pinyon-juniper, Douglas fir-aspen, big sagebrush, meadows, and riparian habitats +