Glyceria canadensis var. laxa

(Scribn.) Hitchc.
Common names: Limp mannagrass
Endemic
Synonyms: Glyceria laxa
Treatment appears in FNA Volume 24. Treatment on page 80.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Spikelets 3-5 mm, with (2)3-5 florets. Lower glumes 0.6-1.3 mm; upper glumes 1.5-2.3 mm, usually rounded, sometimes acute; lemmas 1.8-2.5 mm. 2n = 60.

Discussion

Glyceria canadensis var. laxa grows in swamps, bogs, and wet woods, primarily along the eastern seaboard of North America from Nova Scotia to northeastern Tennessee. It is sometimes treated as a hybrid, G. xlaxa (Scribn.) Scribn., but several specimens have dehiscent anthers and well-formed caryopses, indicating that they are not hybrids. The report of 2n = 30 is based on counts for G. xottawaensis.

Selected References

None.

Lower Taxa

None.
Mary E. Barkworth +  and Laurel K. Anderton +
(Scribn.) Hitchc. +
Limp mannagrass +
Conn. +, N.J. +, N.Y. +, Wash. +, Del. +, D.C. +, Wis. +, W.Va. +, N.H. +, N.C. +, Pa. +, R.I. +, Va. +, Mass. +, Maine +, Vt. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Ill. +, Ind. +, Md. +, Ohio +, Minn. +, Mich. +  and Oreg. +
Glyceria laxa +
Glyceria canadensis var. laxa +
Glyceria canadensis +
variety +