Difference between revisions of "Cinna arundinacea"
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Revision as of 20:48, 5 November 2020
Culms 28-185 cm, somewhat bulbous at the base; nodes 5-13. Ligules 2-10 mm; blades to 34.5 cm long, 3-19 mm wide. Panicles 6.5-55 cm; branches ascending to spreading. Spikelets (3.5)4-6(7.5) mm; rachilla prolongations 0.1-0.4 mm, sometimes absent. Lower glumes (2.7)3.5-5(6.1) mm, somewhat shorter than the lemmas, 1-veined; upper glumes (3.5)4-6(7.5) mm, equal to or slightly longer than the lemmas, 3-veined; stipes 0.25-0.65 mm; lemmas (2.7)3.5-5(6.4) mm, 3(5)-veined, awns 0.2-1.5 mm, rarely absent; paleas 1-veined; anthers 1, 0.8-1.9 mm. Caryopses 2.1-2.8 mm. 2n = 28.
Distribution
Conn., N.J., N.Y., W.Va., Del., D.C., Wis., N.B., Ont., Que., N.H., Tex., La., Tenn., N.C., S.C., Pa., Va., Mass., Maine, R.I., Vt., Ala., Kans., N.Dak., Nebr., Okla., S.Dak., Ark., Ill., Ga., Ind., Iowa, Md., Ohio, Mo., Minn., Mich., Mont., Miss., Ky.
Discussion
Cinna arundinacea grows in southeastern Canada and throughout most of the eastern United States, at 0-900 m. It is most common in moist woodlands and swamps, depressions, along streams, and in floodplains and upland woods. It is less frequent in wet meadows, marshes, and disturbed sites. It flowers in late summer to fall. Cinna arundinacea is most easily distinguished from C. latifolia by its 3-veined upper glumes and larger spikelets.
Selected References
None.