familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Poeae
genusAira
speciesAira caryophyllea
Aira caryophyllea var. caryophyllea
Common names: Silver hairgrass
Treatment appears in FNA Volume 24. Treatment on page 616.
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.
References
None.
Lower Taxa
No lower taxa listed.
Facts about "Aira caryophyllea var. caryophyllea"
Author | J.K. Wipff + |
Authority | unknown + |
Common name | Silver hairgrass + |
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. + and Oreg. + |
Illustrator | Linda A. Vorobik and Hana Pazdírková + |
Reference | None + |
Source xml | https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse grained fna xml/V24/V24 876.xml + |
Synonyms | Gramineae + |
Taxon family | Poaceae + |
Taxon name | Aira caryophyllea var. caryophyllea + |
Taxon parent | Aira caryophyllea + |
Taxon rank | variety + |
Volume | Volume 24 + |