familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusPanicum
subgenusPanicum subg. Agrostoidea
sectionPanicum sect. Agrostoidea
speciesPanicum rigidulum
subspeciesPanicum rigidulum subsp. combsii
Difference between revisions of "Panicum rigidulum subsp. combsii"
Synonyms: Panicum longifolium var. combsii Panicum combsii
Treatment appears in FNA Volume 25. Treatment on page 477.
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|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Latest revision as of 17:56, 11 May 2021
Plants similar to subsp. pubescens, but often shortly rhizomatous, more nearly glabrous, and more deeply and consistently purple throughout. Ligules nearly obsolete; blades usually 2-7 mm wide, often folded or involute, usually pilose adaxially, at least near the base, bases about equal in width to the subtending sheaths. Spikelets 2.6-3.8 mm, usually purple, slender, erect on the pedicels. Lower glumes to 3/4 as long as the spikelets.
Discussion
Panicum rigidulum subsp. combsii is restricted to the United States, where it grows in the same moist habitats as subsp. pubescens, but is much less common. Its long, narrow, purple, often gaping spikelets somewhat resem¬ble those of P. virgatum, which often grows in the same habitats.
Selected References
None.
Lower Taxa
None.
... more about "Panicum rigidulum subsp. combsii"
Conn. +, N.J. +, N.Y. +, W.Va. +, Del. +, D.C. +, Wis. +, B.C. +, N.S. +, Ont. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Ala. +, Kans. +, Ky. +, La. +, Mo. +, Okla. +, Pa. +, Tenn. +, Tex. +, Va. +, Puerto Rico +, N.C. +, S.C. +, Md. +, Calif. +, Miss. +, Ark. +, Ill. +, Ga. +, Ind. +, Mich. +, Ohio + and Oreg. +
Present +
Panicum rigidulum subsp. combsii +
Panicum rigidulum +
subspecies +