page 419. Plants annual, glabrous or glabrescent. Bracts of pistillate flowers leaflike, deltate or rhombic-deltate, very broad, margins crispate and denticulate
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ovate, deltate, or rhombic, 1.5–5.5 × 1.4–10 cm, base cordate, subcordate, truncate, or attenuate, margins entire, crenate-serrate, or dentate, or coarsely
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Annuals or perennials, mostly 50–150+ cm (often rhizomatous). Leaves all or mostly cauline; opposite; petiolate; blades (pinnately nerved) deltate or rounded-rhombic
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alternate); petiolate; blades 1-nerved or 3-nerved, ovate, deltate, or rhombic to lanceolate, margins entire or toothed [lobed, 2-pinnatifid], faces usually
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"seed-coat architecture or pubescence or relief","spike height or length or size","spike shape","stamen presence","stem architecture or shape","stem arrangement"
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prismatic or compressed to flattened, rarely, if ever, beaked, bodies often 10-ribbed or (4–) 5-angled, smooth or papillate to rugose between ribs or angles
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broadly ovate to deltate or rhombic with 5–18 pairs of lateral-veins, 3–10 × 3–8 cm, base truncate to cuneate, marginally coarsely, irregularly, or sometimes
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nerved) deltate or rounded-rhombic to cordate or ovate, often raggedly pinnately lobed (lobes 3–11), ultimate margins coarsely toothed to denticulate or entire
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from bases or throughout. Leaves mostly basal; alternate; petiolate; blades rounded-deltate, lanceolate, or rhombic, margins crenate, serrate, or subentire
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(distal sometimes alternate); petiolate; blades (3–5-nerved) ± deltate, ovate, or rhombic (proximal 1–3 pairs, often 3–5-lobed), margins usually toothed
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"seed-coat architecture or pubescence or relief","spike height or length or size","spike shape","stamen presence","stem architecture or shape","stem arrangement"
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"seed-coat architecture or pubescence or relief","spike height or length or size","spike shape","stamen presence","stem architecture or shape","stem arrangement"
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basal and/or cauline; opposite (sometimes whorled) or alternate; petiolate or sessile; blades (pinnately nerved or 3-nerved or 5-nerved from at or near bases)
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blades deltate, lance-elliptic, lanceolate, lance-linear, linear, linear-oblong, ovate, or rhombic, sometimes pinnately lobed, ultimate margins entire or toothed
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petiolate (obscurely in E. scaposa); blades (1-nerved or 3-nerved) mostly deltate, lanceolate, rhombic, or ovate (narrowly oblanceolate to linear in E. scaposa)
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usually deltate, lanceolate, ovate, rhombic, or triangular, sometimes orbiculate, margins entire, crenate, dentate, or serrate, faces glabrous or hispidulous
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Perennials or subshrubs, 10–20 cm; densely short-hairy. Leaves: petioles 10–80 mm; blades broadly ovate, ovate-deltate, or ovate-rhombic, 5–12 (–15) ×
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internodes not winged). Leaves all or mostly opposite (distal sometimes alternate); blades ovate-deltate or rhombic to lance-elliptic, 3–5 × 1–3 cm, bases
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mm; blades 3-nerved from bases, deltate or rhombic-ovate, 50–100 × 20–50 mm, bases acute to truncate, margins crenate or coarsely dentate, apices long-acuminate
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bases, deltate-ovate or rhombic-ovate, 20–140 × 10–100 mm, bases truncate to cordate, margins irregularly dentate, apices acute, faces glanddotted or glandular-pubescent
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