Difference between revisions of "Puccinellia fasciculata"
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Latest revision as of 16:24, 11 May 2021
Plants short-lived perennials; cespitose, not mat-forming. Culms 10-65 cm, usually decumbent and geniculate, sometimes erect. Ligules 1-2 mm, obtuse to truncate, entire; blades 2-7 mm wide, flat, folded, or involute. Panicles 4-16 cm, compact to diffuse at maturity, linear to pyramidal, lower branches ascending to erect, spikelet-bearing nearly to the base; pedicels slightly to densely scabrous, often with tumid epidermal cells. Spikelets 3-6 mm, with 2-6 florets. Glumes rounded over the back, veins prominent to obscure, apices acute to obtuse; lower glumes 0.8-1.6 mm; upper glumes 1.2-2.3 mm; calluses with a few hairs; lemmas 1.8-3 mm, slightly to markedly coriaceous throughout, glabrous or with a few hairs near the base, backs rounded, 5-veined, veins obscure, midveins usually excurrent, sometimes ending at the margins, apices acute to obtuse, entire, apical margins smooth or with a few scattered scabrules; palea veins glabrous proximally, scabrous to shortly hispid near midlength, scabrous distally; anthers 0.6-1 mm. 2n = 28.
Distribution
Maine, Md., N.J., Conn., N.Y., Mass., Va., N.H., Utah, Del., N.S., Ont., P.E.I., Pa., R.I., Ariz., Nev.
Discussion
Puccinellia fasciculata is native to Europe. In the Flora region, it is found principally along the east coast, but it is also established at a few sites in Arizona and Utah, and has been reported from Nevada. All occurrences in the Flora region are probably the result of human introductions.
Selected References
None.