in FNA Volume 23. Plants cespitose, short to long rhizomatous, sometimes stoloniferous. Culms brown at base, shorter than leaves. Leaves: basal sheaths
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minute; apex acute-acuminate to rounded; costa single, long, ending below apex, thick, usually pellucid, or double and short; laminal cells short. Branch leaves
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proximally, entire or serrulate distally; apex abruptly acuminate, subulate or not; costa double and short or ecostate; alar cells differentiated, quadrate
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serrulate; apex long-acuminate to abruptly acuminate; ecostate or costa double, short; alar cells not differentiated or sometimes quadrate to short-rectangular;
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glandular-pubescent, glaucous or not; basal and proximal cauline petiolate, sometimes short-petiolate (P. gibbensii, P. idahoensis); cauline sessile or petiolate, blade
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distinct, sessile; stipules 2 per node, white to tan, lanceolate and acuminate to widely triangular, margins entire, apex entire to variously split; blade
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decurrent; margins plane to reflexed or revolute, entire; apex abruptly or gradually slender-acuminate; ecostate; alar cells quadrate, region large; laminal cells
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3–7-branched; immature inflorescence ± abruptly deflexed, branches spreading, axis 1.5–4.5 cm, 1+ mm diam., glabrous, sparsely short-hairy, or sparsely glandular-hairy
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pubescent distally, hairs moderately dense, spreading, short to long, soft, eglandular, often mixed with short-stipitate-glandular ones (except var. obispoënsis)
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strongly compressed; auricles absent; ligules membranous, truncate to acuminate; blades 0.4-12 mm wide, flat, folded, or involute, adaxial surfaces with
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cordate or auriculate or cuneate to abruptly narrowed or rounded, margins entire, apex obtuse or acute to acuminate; surfaces abaxially chalky white or
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distally; apex abruptly to gradually acuminate, hairpoint absent; costa single, double, 2-fid, or rarely ecostate, strong to weak, short to percurrent,
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branched, short or elongate. Leaves many ranked in flat or high spiral; blade basally pale, distally greener, linear-attenuate or triangular-acuminate, lingulate
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or less abruptly narrowed; apex acute or obtuse, cucullate or concave, with an apiculus, mucro or short subula; costa strong, percurrent to short-excurrent
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elliptic, broadly elliptic, subcircular or broadly obovate, apex abruptly acuminate or acute, abaxial surface often not glaucous apically. Salix myrsinifolia
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25–450, bisexual, fertile; corollas yellow (nerves orange-resinous), tubes shorter than usually tubular, sometimes strongly inflated and indurate throats,
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obovate, gradually or abruptly narrowed to apex, straight or falcate, strongly concave, not plicate; base not decurrent or short-decurrent; margins entire
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and upperside leaves abruptly adnate to stem; leaves slightly dimorphic. > 3 2 Underside leaves decurrent, upperside leaves abruptly adnate to stem; leaves
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basally, weakly serrulate to serrulate, limbidium absent; apex abruptly short or long-acuminate, hairpoint absent; costa single, ending in apex or subpercurrent
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appendages proximally, serrulate-dentate to crenulate distally; apex abruptly or gradually acuminate; costa single, strong, ending before acumen or rarely excurrent;
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