Cinna arundinacea
cinna roseau, stout wood reed, sweet wood-reed
28-185 cm, somewhat bulbous at the base;
nodes 5-13.
6.5-55 cm;
branches ascending to spreading.
(3.5)4-6(7.5) mm;
rachilla prolongations 0.1-0.4 mm, sometimes absent.
(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.
2.1-2.8 mm.
2-10 mm;
blades to 34.5 cm long, 3-19 mm wide.
= 28.
Cinna arundinacea
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.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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