Triplasis purpurea

(Walter) Chapm.
Common names: Purple sandgrass
Treatment appears in FNA Volume 25. Treatment on page 42.

Plants annual and tufted or perennial and occasionally rhizomatous. Culms 14-100 cm, usually ascending; internodes glabrous. Ligules to 1 mm, of hairs; blades 1-5 mm wide, flat or involute, hispid or with papillose-based hairs. Panicles 3-7 cm long, 1-6 cm wide. Spikelets 6.5-9 mm, with 3-4 florets. Glumes about 2 mm, glabrous or scabrous, apices erose; lemmas 3-4 mm, lobes shorter than 1 mm, rounded; awns shorter than 2 mm, straight; paleas about 2.5 mm, keels ciliate; anthers about 2 mm, reddish-purple. Caryopses about 2 mm long, 0.6 mm wide, tapering distally, tan. 2n = 40.

Distribution

Conn., N.J., N.Y., Del., Wis., Fla., N.H., N.Mex., Tex., La., Tenn., N.C., S.C., Pa., Va., Colo., Ont., Ala., Kans., N.Dak., Nebr., Okla., S.Dak., Ark., Ill., Ga., Ind., Iowa, Ky., Maine, Md., Mass., Ohio, Mo., Mich., R.I., Miss., Oreg.

Discussion

Triplasis purpurea grows in sandy soils throughout the eastern and central portion of the Flora region, extending southward through Mexico to Costa Rica. It is far more common in maritime dunes than T. americana. Plants in the Flora region belong to Triplasis purpurea (Walter) Chapm. var. purpurea.

Selected References

None.

Lower Taxa

None.

... more about "Triplasis purpurea"
Stephan L. Hatch +
(Walter) Chapm. +
Purple sandgrass +
Conn. +, N.J. +, N.Y. +, Del. +, Wis. +, Fla. +, N.H. +, N.Mex. +, Tex. +, La. +, Tenn. +, N.C. +, S.C. +, Pa. +, Va. +, Colo. +, Ont. +, Ala. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Ill. +, Ga. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Ohio +, Mo. +, Mich. +, R.I. +, Miss. +  and Oreg. +
Gramineae +
Triplasis purpurea +
Triplasis +
species +