Fimbristylis puberula (Michx.) Vahl
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Cyperaceae
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Scientific Name
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Description
Species Description - Perennial from short, stout, knotty rhizomes; stems solitary or in small tufts, to 1 m, smooth, slender, terete or broadly oval in section; lvs smooth or often hairy, usually involute, ca 1 mm wide; ligule inconspicuous or wanting; longest invol bract usually much shorter than the infl; spikelets 5–10 mm, ellipsoid to lance-ovoid or ovoid, not very numerous, in a usually compound system of subumbellate cymes; scales ovate to obovate or reniform, usually smooth, minutely excurrent- mucronate; stamens 3; anthers 2–2.5 mm; style bifid, fimbriate from near the middle to the branch-point; achene lenticular, obovate, 1 mm, finely cellular-reticulate in vertical rows; 2n=20, 40. Meadows, prairie swales, savannas, and upper edges of marshes and bogs, not or scarcely maritime; s. U.S., n. mainly on the coastal plain irregularly to L.I., Pa., Mich., and Ill., more commonly to Mo. and Neb., and irregularly to Utah. Ours is var. puberula. West of our range this gives way to var. interior (Britton) Kral, with numerous more slender rhizomes and with the longest bract usually surpassing the infl. (F. interior)