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Bog Muhly

Muhlenbergia uniflora (Muhl.) Fernald

Comprehensive Description

provided by North American Flora
Muhlenbergia uniflora (Muhl.) Fernald, Rhodora 29: 10. 1927
Poa> uniflora Muhl. Descr. Gram. 151. 1817.
AgrosUs serolina Torr. Fl. U. S. 1: 88. 1823. (Type from New Jersey.) Not A. serotina L.
1767. Vilfa serotina Trin. Ic. pi. 251. 1830. (Type from North America.) Viifa lenera Trin. Mem. Acad. St.-Petersb. T. 6=: 87. 1840. (Tyf>e from Boston.) Poa modesia Tuckerm. Am. Jour. Sci. 45: 45. 1843. (Type from Cambridge, Massachusetts.) Sporobolus serotinus A. Gray, Man. 577. 1848. (Based on Agroslis serotina Torr.) Sporobolus uniflorus Scribn. & Merr. Giro. U. S. Dep. Agr. Agrost. 27: 5. 1900. (Based on Poa
uniflora Muhl.) Muhlenbergia uniflora var. lerrae-novae Fernald, Rhodora 29: 11. 1927. (Type from Newfoundland, Fernald el al., 26244.)
Perennial, but often appearing like an annual, tufted, often with decumbent bases or slender rhizomes; culms compressed, slender, erect, scaberulous, 20—40 cm. tall; sheaths overlapping, compressed-keeled, glabrous or slightly pubescent; ligule thin, truncate, about 1 mm. long, the margin erose; blades flat, crowded along the lower part of the culm, erect, lax, mostly less than 10 cm. long, sometimes longer, 1 mm. wide or less; panicles loose, open, oblong, 7-20 cm. long, 2-4 cm. wide, the slender branches ascending, rather stiff, the a.xis and branches scabrous, the capillary pedicels (branches of the third or fourth order) much longer than the spikelets; spikelets glabrous, dark-purplish, about 1.5 mm. long, rarely 2-flowered; glumes scarcely half as long as the spikelet, subacute; lemma faintly 3-nerved, acutish; palea as long as the lemma.
Type LOCALITY': New England.
Distribution: Bogs and wet meadows, Newfoundland to Michigan and New Jersey.
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bibliographic citation
Albert Spear Hitchcock. 1935. (POALES); POACEAE (pars). North American flora. vol 17(6). New York Botanical Garden, New York, NY
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Physical Description

provided by USDA PLANTS text
Perennials, Terrestrial, not aquatic, Stems trailing, spreading or prostrate, Stems nodes swollen or brittle, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence branches more than 10 to numerous, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes shorter than adjacent lemma, Glumes 1 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 3 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
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Dr. David Bogler
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Missouri Botanical Garden
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Muhlenbergia uniflora

provided by wikipedia EN

Muhlenbergia uniflora is a small species of grass, commonly called one-flowered muhly. It is native to north eastern USA and adjoining area of Canada.

Description

Muhlenbergia uniflora is a small perennial grass that is non-rhizomatous. Culms (stems) tufted, 2–4 dm tall. The one flowered spikelets are purple, arranged in open, diffuse panicles. The glumes are much shorter than the lemmas, and both are awnless.[2]

References

  1. ^ "Muhlenbergia uniflora (Muhl.) Fernald". www.worldfloraonline.org. Retrieved 2021-12-30.
  2. ^ Barbara Coffin; Lee Pfannmuller (1988). Minnesota's Endangered Flora and Fauna. U of Minnesota Press. p. 115. ISBN 978-0-8166-1689-3.
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Muhlenbergia uniflora: Brief Summary

provided by wikipedia EN

Muhlenbergia uniflora is a small species of grass, commonly called one-flowered muhly. It is native to north eastern USA and adjoining area of Canada.

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