familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusDichanthelium
speciesDichanthelium portoricense
Dichanthelium portoricense subsp. patulum
Synonyms: Panicum webberianum unknown Panicum sabulorum var. patulum unknown Panicum portoricense var. nashianum unknown Panicum patentifolium unknown Panicum lancearium unknown
Treatment appears in FNA Volume 25. Treatment on page 442.
Revision as of 16:14, 30 October 2019 by FNA>Volume Importer
Culms 20-50 cm, often densely puberulent. Sheaths puberulent to subglabrous. Cauline blades 4-7 cm long, 3.5-8 mm wide. Primary panicles 2-7 cm. Spikelets 1.8-2.6 mm, usually densely pubescent or puberulent, rarely glabrous.
Discussion
Dichanthelium portoricense subsp. patulum is more common in moist, sandy pinelands and savannahs than subsp. portoricense. It also grows in coastal sand dunes, but is less abundant there than subsp. portoricense. It is the more variable of the two subspecies, grading into subsp. portoricense as well as D. commutatum. More robust plants are recognized by some as Panicum patentifolium Nash. Occasional specimens, recognized by some as P. webberianum Nash, resemble the widespread D. sphaerocarpon.
Selected References
None.
Lower Taxa
None.
... more about "Dichanthelium portoricense subsp. patulum"
Minn. +, Conn. +, N.J. +, N.Y. +, Wash. +, Ala. +, Mich. +, N.C. +, Pa. +, Puerto Rico +, S.C. +, W.Va. +, Ark. +, Iowa +, Kans. +, Mo. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Del. +, D.C +, Wis. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Labr.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Pacific Islands (Hawaii) +, Md. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, Miss. +, Ariz. +, N.Mex. +, Tex. +, La. +, Ga. +, Tenn. +, Calif. +, Nev. +, Colo. +, Ill. +, Ind. +, Va. +, Idaho +, Ohio +, Utah +, Mont. +, Oreg. + and Ky. +
Present +
Dichanthelium portoricense subsp. patulum +
Dichanthelium portoricense +
subspecies +