Difference between revisions of "Aira caryophyllea var. caryophyllea"
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Revision as of 19:17, 24 September 2019
Pedicels 0.9-7 mm, usually 1-2 times as long as the spikelets, gradually thickening to the apices. Spikelets 2-3.3(3.5) mm, usually appressed to the secondary branches, silvery-green to stramineous; rachillas not prolonged. Glumes 2-3.3(3.5) mm, subequal, 1-veined or the upper glumes with 2 lateral veins, these sometimes obscure and usually less than 1/2 the length of the glumes, acute; lower lemmas 2-2.4 mm, apices bifid, teeth 0.2-0.4 mm, awned, awns 2.4-3.5 mm, geniculate; lower paleas 1.5-1.7 mm; upper lemmas 2-2.6 mm, apices bifid, teeth 0.2-0.3 mm, awned, awns 2.5-3.9 mm; upper paleas 1.4-1.7 mm; anthers 0.2-0.5 mm, yellow to orange. Caryopses 1.4-1.5 mm long, 0.4-0.5 mm wide, glabrous.
Distribution
Wash., Del., D.C, Conn., Mass., N.Y., Pacific Islands (Hawaii), Fla., Wyo., N.H., N.J., Tex., La., B.C., N.S., Yukon, Tenn., N.C., S.C., Pa., Calif., Va., Alaska, Ala., Miss., Ark., Vt., Ill., Ga., Ind., Okla., Idaho, Md., Ohio, Mo., Oreg.
Discussion
Aira caryophyllea var. caryophyllea is native to the Mediterranean region. It usually grows in dry, sandy to rocky soil and on rock outcrops, in open and disturbed sites in woods, grassy flats, pastures, paths, and roadsides; it is occasionally found in damp ground at swamp or lagoon margins.
Selected References
None.