Mentioned on page 60. Plants leafy-stemmed. Stems 50–84 cm, sparsely hirsute proximally, hirsute distally. Leaves: basal 14–30 cm, blade interruptedly lyrate-pinnate
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0.5-2 mm; blades 10-30 cm long, 2-8 mm wide, flat, glabrous or sparsely hirsute on 1 or both surfaces. Panicles 4-25 (40) cm long, 3-14 cm wide, exerted
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densely pubescent. Sheaths 3-14 cm, not overlapping, frequently inflated or spreading from the culm, chartaceous, glabrous or pubescent; ligules 0.5-1.5 mm,
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long, 2-12 mm wide, flat or involute, ascending, adaxial surfaces densely hirsute basally, less densely so elsewhere, bases attenuate, apices acute. Panicles
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slender or stout. Flowers: sepals usually erect or ascending, rarely spreading, oblong or ovate to lanceolate, (usually forming urceolate calyx, sometimes
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cm, short-stipitate-glandular, longer hairs usually retrorse, sometimes spreading, white; blade cordate to reniform, ± as long as wide, (0.4–) 1.1–4.7 (–8)
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widely spreading (well-developed), densely small-leaved. Peduncles ascending (secund in well-developed arrays?), 0.3–4.5 cm, densely strigoso-hirsute, sometimes
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erect, ascending, or spreading. Bark exfoliating in grayish, brown, or reddish-brown sheets. Branches erect, ascending, or spreading, sometimes arching;
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widening above the base, (3) 4-5 (7) -veined, smooth or scabrous, sometimes hirsute, margins firm, awns (10) 15-25 (30) mm, straight except the awns of the
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sometimes purplish distally), proximally sparsely to moderately hispiduloso-hirsute or pilose, distally moderately to densely so, stipitate-glandular. Leaves
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annual; taproot slender. Stems arising directly from the root, erect to spreading, slender, solid, not fistulose or disarticulating into ringlike segments
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annual, biennial, or perennial. Taproots slender. Stems ascending or spreading to often prostrate, much-branched from base, mat-forming, terete. Leaves
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gradually reduced distally, hirsute to piloso-hirsute. Heads in loose, racemiform to spiciform arrays. Peduncles 0 or (peduncles spreading to ascending) 1–10 mm
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Treatment on page 672. Mentioned on page 670, 673, 674. Stems erect, 30–90 cm, hirsute to pilose, hairs glandular and eglandular. Leaves densely pilose; proximal
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Flowers: receptacle glabrous; sepals 4-5, spreading or reflexed from base, 1.5-3 × 1-1.5 mm, glabrous or sparsely hirsute; petals 1-3, 1.5-2 × 0.5-1 mm; nectary
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unbranched or sparsely branched, 5–50 cm; internodes densely spreading, pilose or hirsute to glabrous. Leaves spirally arranged, sessile; blade linear-lanceolate
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at an angle to the sheaths, surfaces glabrous or the adaxial surfaces hirsute, margins hispid, with papillose-based hairs. Panicles 8-16 cm long, 1-3
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leaning, smooth except in inflorescence. Leaves: proximal sheaths hispid-hirsute, median smooth, distal progressively shorter, smoother; principal blades
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Stems erect, not viny, 2-4 (-6) dm, pubescent or pilose to ± tomentose or hirsute. Leaves simple. Leaf-blade elliptic-lanceolate to ovate, unlobed, 3.5-8
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short and thick. Stems ascending (greenish proximally), densely hirsute (hairs spreading), densely minutely glandular. Leaves basal (persistent) and cauline;
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