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socialis). Leaves simple. Leaf-blade 1-pinnate or 2-pinnate, ternate, or finely dissected; ultimate divisions lobed or unlobed, margins entire or few-toothed

branched stems, sessile, whorled; stipules absent. Leaf-blade undivided to finely dissected, margins serrulate, laticifers absent; 1st leaves of plumule simple

green, sessile or short-petioled, flat, entire, and floating, 1 leaf finely dissected, petiolate, rootlike, and pendent. Submerged leaves bearing sori that

leaves broad, simple and lobed to 4-pinnate, glabrous; distal leaves finely dissected with linear ultimate segments. Sporangia nearly sessile, usually densely

rhizomes fibrous. Stems annual, densely branched distally; branches finely dissected, ascending to perpendicular, unarmed; cladophylls in clusters of (2–)

leaves petiolate, distal leaves nearly sessile. Leaf-blade palmately finely dissected, ±semicircular, lobes less than 2 mm wide (except sometimes on leaves

Stems 1, tomentose or glabrate. Leaf-blades: margins finely dissected, lateral lobes also dissected, midribs not or weakly winged. Phenology: Flowering

solitary; involucres present [absent], involucral-bracts 5-6, finely pinnately dissected, closely subtending flower. Flowers bisexual, radially symmetric;

rosette and cauline, basal 3-lobed, cauline (1–2), 3-lobed, reduced, more finely dissected than basal; stipules small, not decurrent on petiole, (margins raggedly

terminal lobes coarsely serrate or finely dissected), ultimate margins irregularly and coarsely serrate-dentate or finely dissected Packera eurycephala 41 Plants

Segments of less dissected sterile leaves ovatelanceolate, regularly dentate to incised with 8–16 teeth or lobes; segments of more finely dissected sterile leaves

sometimes deeply dissected, midribs winged Packera eurycephala var. eurycephala 1 Stems 1; leaf blades finely dissected, lateral lobes also dissected, midribs

pallescens, specimens of D. gypsophilum may be separated by their much more finely dissected leaves, with less surface area, stem base usually reddish, stems frequently

parryi var. seditiosum, has smaller flowers, more pubescence, and more finely dissected leaves and is usually found in chaparral and, less often, in dry woodlands

and a more northern distribution than D. decorum. It also has more finely dissected leaves than D. decorum subsp. decorum. Often confused with Delphinium

americanum differs from var. distentifolium of Europe in its more finely dissected leaves with crenulate pinnule-segments, relatively broader pinnae with

stachydeum, D. geyeri is generally smaller, earlier flowering, with more finely dissected leaves and a more eastern geographic distribution. None. None. "entire"

Generated Map Legacy Map Ariz., Colo., N.Mex., Tex., Utah, Mexico The finely dissected leaves, dark petioles, creeping stems, smaller spores, and terrestrial

and growth form. The leaves of subsp. scopulorum, however, are not finely dissected like those of P. cystopteridifolia. None. None. window.propertiesF

more deeply incised, and more heavily toothed, making them appear more finely dissected than the linear to deltate secondary and smaller toothed lobes of P

J., N.Y., Ohio, Pa., R.I., Vt., Wis., Eurasia Artemisia pontica has finely dissected gray foliage and is widely planted as an ornamental. It escapes locally;

leaves sometimes deeply parted or dissected, never compound. > 16 15 Cauline leaves present, simple, lobed or dissected, or compound (rarely reduced to scales

lobed, center lobe elongate, not deeply dissected, (1.5–) 3.5–10 (–15) cm, not rugose, base cuneate, margins finely dentate to crenate, surfaces stellate-pubescent

linear or oblong segments; mid and distal cauline smaller, entire or once dissected. Heads borne singly or few in open cymiform arrays, pedunculate. Involucres

delicate, remaining attached to the peristome teeth, the margin thicker and dissected into pendent lobes alternating with the peristome teeth. Calyptra with

anthesis, blades 10–20 cm, margins bipinnately dissected into narrow lobes; mid cauline sessile, bipinnately dissected; distal much smaller, entire or pinnately

into linear or oblong segments; mid and distal cauline smaller, entire or dissected. Heads usually many in open cymiform arrays, pedunculate. Involucres ovoid

key to groups of species recognized by leafy runners, pinnately lobed or dissected leaves, discoid or disciform heads, and yellow rays. Otherwise, species

amplexicaul); blade margins entire, dentate, crenate, sinuate, repand, or dissected. Inflorescences terminal, usually racemose (racemes often corymbose or

these erect, overlapping, dark-brown to black, flat, margins pectinately dissected into 6–8 pairs of wiry lobes. Inner phyllaries: tips truncate, irregularly

appendages erect, overlapping, dark-brown to black, flat, margins pectinately dissected into numerous wiry lobes. Inner phyllaries: tips truncate, irregularly

adjacent phyllaries, tips often recurved, elongate, featherlike, pectinately dissected into long, filiform lobes. Inner phyllaries: tips erect, ovate or orbiculate

hairs papillose-based near the throat; ligules 0.5-2 mm, membranous, dissected ciliate; blades (6) 20-65 cm long, 2-15 mm wide, flat, adaxial surfaces

simple or branched from base, 3–38 cm, glabrous or sparsely hirtellous, finely villosulous-glandular above nodes. Leaves cauline, basal deciduous by flowering;

flat or ± concave, margins varying from coarsely dentate to pectinately dissected into ± wiry lobes. Inner phyllaries: tips truncate, irregularly dentate

leaves green or bronze during winter. > 7 7 Pinnules obliquely ovate, margins finely denticulate to crenulate, apex rounded to acute; trophophore blades green

hairs often 2 mm, sometimes also stellate-hairy near base, usually becoming finely hispid distally. Leaves mostly basal, cauline 1–3; stipules lanceolate,

base not decurrent (decurrent in P. trifarium); margins plane, entire, very finely or distinctly denticulate, limbidia absent; apex broadly rounded, apiculate

leaves persistent, blades rhombic to deltate or reniform in outline, 3-4×-dissected, 1.1-3.4 × 2-3.1 cm, segments linear, base obtuse, margins crenate, apices

dentate (E. decora) or crenate to dentate or toothed, rarely lobed or dissected; plants glabrate or hairy, rarely glabrous. > 13 13 Leaf blades ovate-triangular

to deeply dissected, often very spiny bracts. Peduncles 0–4 cm. Involucres hemispheric to subspheric, 1.5–2.5 × 1.5–3 cm, glabrous to finely arachnoid

rounded segments of 1–3 cells. Calyptra cucullate, smooth. Spores 25–32 µm, finely papillose. Habitat: Sand or mineral soil along rivers but not yet reported

narrowly or not perforate, cilia absent or rarely rudimentary. Spores 15–25 µm, finely roughened. Phenology: Capsules mature summer (Jun–Aug). Habitat: Soil, tundra

truncate; involucral gland appendages 0.3–0.6 × 0.8–1.2 mm, usually deeply dissected into 4–5 acuminate lobes, rarely entire or crenate. Euphorbia jejuna 43

in diameter are called awns. Bristles, awns, and scales may be smooth or finely to coarsely barbed or plumose. A scale of a pappus may terminate in one

pinnae are divided further into pinnules, the blade is 2-pinnate. A very finely dissected blade may be 3(or more)-pinnate (decompound). Lobed blades are often

delimitation of readily distinguishable taxa appears more useful than trying to dissect finely the variation present into microspecies that would have little experimental