Hesperostipa comata subsp. comata

unknown
Treatment appears in FNA Volume 24. Treatment on page 158.
Revision as of 19:14, 24 September 2019 by FNA>Volume Importer

Lower cauline nodes usually concealed by the sheaths. Panicles often partially included in the uppermost sheath at maturity. Awns 75-225 mm, terminal segment 40-120 mm, sinuous to curled. 2n = 38, 44, 46.

Discussion

Hesperostipa comata subsp. comata grows on well-drained soils of cool deserts, grasslands, and sagebrush associations, at elevations of 200-2500 m. It is widespread and often abundant in western and central North America, particularly in disturbed areas. It is similar to H. neomexicana, differing primarily in having awns that are either not hairy or have hairs that are no more than 0.5 mm long, and in having thinner, longer ligules. Intermediates to H. neomexicana exist but are not common.

Selected References

None.

Lower Taxa

None.
Mary E. Barkworth +
unknown +
Wash. +, Wis. +, Wyo. +, N.Mex. +, Tex. +, Ill. +, Ind. +, Kans. +, N.Dak. +, N.Y. +, Okla. +, R.I. +, S.Dak. +, Nev. +, Colo. +, Calif. +, Nebr. +, Mont. +, Oreg. +, Iowa +, Ariz. +, Idaho +, Utah +, Minn. +, Mich. +, Alta. +, B.C. +, Man. +, Ont. +, Sask. +  and Yukon +
Stipa comata subsp. intonsa +  and Stipa comata +
Hesperostipa comata subsp. comata +
Hesperostipa comata +
subspecies +