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Key to families | Table of families and genera
Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual, perennial herb, cespitose or rhizomatous. Stem: ascending to erect. Leaf: basal and cauline; appendages 0 or small, acute to obtuse; ligule membranous to translucent, obtuse to truncate; blade generally flat, margin minutely scabrous. Inflorescence: panicle-like, cylindric to ovoid, dense; branches spike-like, short. Spikelet: ± sessile, strongly laterally compressed; glumes ± equal, membranous, keel generally stiff-ciliate (comb-like), pointed to awned at obtuse to truncate tip, 3-veined; floret 1, breaking above glumes, bisexual; lemma generally awnless at wide, truncate tip, 3–7-veined; palea ± = lemma.
15 species: temperate America, Eurasia. (Greek: a marsh reed) [Barkworth 2007 FNANM 24:670–675; Humphries 1978 Bot J Linn Soc 76:337–340]
1. Inflorescence 1–6 cm, generally ovoid, often cylindric at low elevations; glume awn 2–3 mm ..... P. alpinum
1' Inflorescence 4–18 cm, cylindric; glume awn < 2 mm ..... P. pratense
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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