Search results

longer), 2-12 mm wide (rarely wider), firm or lax, spreading to reflexed or stiffly ascending, yellowish-green or grayish-green to olivaceous, densely to

note in the field whether the adaxial corolla lobes are reflexed or project flatly forward or arch forward, whether the two adaxial lobes are obviously

architecture","body architecture or pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure

architecture","body architecture or pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure

"sepal fusion","side architecture or function or pubescence","side architecture or pubescence or relief","side architecture or shape","side pubescence","side

with simple or branched caudices, sometimes stoloniferous). Stems erect to ascending, decumbent, or prostrate, simple or branched, glabrous or hairy, sometimes

"seed architecture or pubescence or relief","seed architecture or shape","seed course","seed prominence or shape","seed pubescence or relief","seed quantity"

conduplicate, involute, or convolute, sometimes glaucous or pruinose, abaxial surfaces usually glabrous or scabrous, sometimes puberulent or pubescent, rarely

alternate; ± petiolate (basal) or sessile (usually appressed to ascending); blades usually 1-nerved, sometimes 3-nerved or 5-nerved, mostly linear to ovatelanceolate

pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure in adjective form","bristle architecture"

emergent, or exserted, globose to cylindric, smooth or 8-ribbed or 16-ribbed, sometimes constricted below mouth when dry; stomata superficial or immersed;

arching, mounding, or creeping, rarely decumbent, ascending, or scrambling, rooting or not at nodes or tips, terete or angled; prickles absent or sparse to dense

pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure in adjective form","bristle architecture"

architecture","body architecture or pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure

Stems simple or branched, 40–140 cm; branches stiffly ascending, quadrangular, siliceous-ridged, glabrate or scabridulous. Leaves appressed or slightly divergent;

position or structure subtype","style quantity","substance coating","substance coloration or reflectance","tube height or length or size","tube length or size"

roots, caudex, or adventitious-roots, sometimes with shallow, elongated or compact rhizomes often termed rootstocks. Stems erect or ascending, reclining to

96, 97, 100, 102, 1. Annuals, biennials, or perennials, 5–400 cm, spiny. Stems (1–several) erect, branched or simple, sometimes narrowly spiny-winged.

overlapping, spreading or reflexed, white, pink, or red, ovate-elliptic or oblong to oblanceolate or lanceolate, 4–5 mm; petals not or nearly connivent to

adjacent phyllaries. Phyllaries subequal, outer ascending to spreading or reflexed, mid apices ascending to stiffly spreading, straight, acicular, usually 1.5–3

sometimes with thickened, ± fusiform or ± narrowly oblong tubers. Stems 1–5, ascending to erect. Leaves persistent or basal deciduous and cauline persistent

"throat height or length or size","throat shape","throat size","tooth architecture or shape","tooth shape or architecture","tube length or size","tube shape"

individually subtend some or all of the florets) or epaleate (lacking paleae); epaleate receptacles sometimes bristly or hairy or bearing subulate enations

Stems simple or branched, 70–160 cm; branches stiffly erect or arching-ascending, terete, faintly ridged, glabrous. Leaves strongly-ascending; blade linear-lanceolate

glabrous or pubescent. Stems erect, unbranched or branched distally. Leaves basal and cauline; petiolate or sessile; basal (often withered by anthesis or fruiting)

Albersia) or dioecious (subg. Acnida), glabrous or pubescent. Stems erect, ascending, decumbent, or prostrate, usually branched, occasionally simple or nearly

puberulent-villous or glabrous, weakly glanddotted. Heads borne singly or (3–26) in loose, racemiform to spiciform arrays. Peduncles 0 or (spreading to ascending) 1–8

villous with long, stiff, appressed or ascending, multicellular hairs, attachment scars basal; pappi of many, short, ± connate [or distinct] scales. x

papillate. Fruit a capsule, spreading or slightly reflexed, globose to clavoid or obovoid, indehiscent, surface smooth or with prominent longitudinal grooves

paniculately or racemosely arranged cymes, or spikelike. Flowers bisexual or unisexual (staminate or pistillate), staminate and pistillate flowers on same or different

narrowly lanceolate or narrowly obovate or spatulate, margins entire, faces glabrous, scabrous, or scabro-hirtellous, eglandular. Heads radiate or discoid, borne

(discoid; unisexual in Baccharis) or heterogamous (disciform or radiate), usually in corymbiform, paniculiform, racemiform, or spiciform arrays, sometimes borne

locule, in 1 or several rows or clustered, anatropous, bitegmic. Fruit a loculicidal capsule or indehiscent berry or nutlike. Seeds smooth or sculptured

most taxa, with some plants sericeous-strigose or with hairs ascending to wavy (more or less villous) or erect, other plants having thicker, coiled hairs

North America Association Stems simple or branched, 30–80 (–100) cm; branches erect-ascending to arching-ascending, quadrangular, with siliceous ridges on

leaflike, sheathless or sheath less than 4 mm, shorter or longer than diam. of stem; lateral spikes pistillate or the distal 1 (–5) staminate or androgynous, globose

architecture","body architecture or pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure

erect or spreading, paniclelike or, sometimes, racemelike, 4–12 cm, axes puberulent; peduncle 0.1–2.5 cm or absent, puberulent. Pedicels ascending or spreading

easily broken; rachis nodes glabrous or with hairs, hairs to 0.5 mm; primary branches 5-13 cm, stiffly divaricate to reflexed, with axillary pulvini, usually

leaves, ascending to spreading. Culms 15-35 cm, stiffly erect, all but the upper 2-4 internodes very short; nodes glabrous or with weak, reflexed hairs;

broken; rachis nodes glabrous or with straight, less than 0.3 mm hairs; primary branches 2-6 cm, stiffly divaricate to reflexed, with axillary pulvini, usually

purple, distal branches stiff, spreading-ascending, without axillary leaf tufts), glabrous or sparsely strigose (hairs straight, ascending-appressed), sometimes

then to elliptic or lanceolate-elliptic, 35–60 × 6–10 mm, reduced distally, grading into widely ascending to spreading or reflexed bracts; faces abaxially

Subshrubs or herbs, annual (fibrous-rooted or taprooted) or perennial (rhizomatous), terrestrial or semiaquatic. Stems prostrate to decumbent or erect, terete

architecture or arrangement or growth form","flower duration","flower part life cycle","flower shape","flower tube fusion","flower tube height or length or size"

architecture or shape","auricle presence","awn fusion","blade prominence or shape","blade shape or vernation","glume height or length or size","glume shape"

glabrous or sparsely hairy. Flowers: hypanthium greenish, broadly tubular, 2 mm, glabrous or puberulent; sepals not overlapping, reflexed, dark red or green

Herbs or subshrubs, rarely shrubs, annual or perennial, sometimes biennial; hemiparasitic, caudex woody or fleshy, taprooted to fibrous-rooted or rhizomatous

present or absent; blades flat, V-shaped in cross-section or terete, typically keeled abaxially, margins involute or revolute, usually scabrid or scabridulous

measurement","stamen height or length or size","stamen quantity","stem orientation","stem quantity","stipe fusion","stipe height or length or size","stipe orientation"

sepals reflexed or sometimes spreading; petals ovate to lance-falcate, margins entire; lip descending or reflexed, oblong or linear to linear-oblong or linearlanceolate

apical appendages erect or stiffly ascending, linear-lanceolate to acicular, entire or spinulose-dentate, spines erect or ascending, 2–5 mm; apices of inner

3-10 cm wide; rachis nodes glabrous, scabrous, or strigose; primary branches 1-4 cm, stiffly ascending, with axillary pulvini, with 1-4 spikelets per branch

pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure in adjective form","bristle architecture"

architecture or pubescence or relief","spine architecture or shape","spine coloration or pubescence or relief","spine pubescence","spine pubescence or relief"

woody, branches ascending, sometimes rhizomelike. Stems ascending-erect, densely and closely puberulous to villosulous (hairs stiffly crisped, minute)

America Association Herbs or subshrubs, perennial, 1.8–6 dm; from a woody caudex; with a taproot. Stems few-to-many, erect or ascending, unbranched, sometimes

branched from base, branches ascending (fastigiate), 10–50 cm, pubescent with stiff, gland-tipped, patent or slightly reflexed hairs with broadened base,

flat or involute when dry. Inflorescences terminal; panicles, racemes, or a solitary spikelet, to 12 cm; rachises, branches, and pedicels scabrous or hirsute

architecture or function or pubescence","taproot architecture","tendril presence","tube duration","tube texture","tubercle architecture or function or pubescence"

pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure in adjective form","bristle pappus duration"

paniclelike or sometimes racemelike, 4–12 cm, axes puberulent; peduncle 0.1–3.5 cm or absent, puberulent. Pedicels ascending or spreading, articulated

solitary or few, sometimes several, erect or ascending, unbranched, rarely branched from base or from proximal inflorescence nodes, hairs spreading or reflexed

"cilium architecture or pubescence or shape","cilium length or size","cilium texture","floret arrangement","floret height or length or size","floret reproduction"

"properties":["achene architecture or pubescence or relief","anther length or size","basal leaf shape","epicalyx bractlet architecture or shape","flower arrangement"

pubescence or relief","body architecture or shape","body relief","branch arrangement or course or shape","branch structure in adjective form","bristle architecture"

reproduction","face architecture or function or pubescence","head architecture or arrangement","head architecture or shape","head arrangement","involucre

cells 1-papillose or prorulose. > 9 9 Stems 2-or 3-pinnate, forming ascending series of flat, frondose tiers. Hylocomium 9 Stems simple or 1-pinnate, not