Xyris ambigua Beyr. ex Kunth
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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
Xyridaceae
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Scientific Name
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Description
Species Description - Lvs broadly linear, spreading, scarcely twisted, mostly 10-40 cm × 3-20 mm, lustrous dark green, the firm, thickened base brownish or stramineous, only rarely anthocyanic, the plant tending to be invested with the stubble of old fibrous lf-bases; inner surface of inner lvs with prominent dark longitudinal veins; scapes (2-)5-10 dm, twisted, many-ribbed below, becoming flattened and 2-edged above; spikes 1-3 cm at maturity, many-fld, lance-ovoid or ellipsoid; lateral sep shortly included, curved, the broad, thickened keel ciliate-scabrid; pet-blades yellow, obovate, 8 mm, unfolding in the morning; seeds plump, 0.5-0.6 mm, finely ridged; 2n=18. Moist or wet low ground, often in grass-sedge bogs or savannas or along the upper edges of wet places; coastal plain from Va. to Fla. and Tex. Early summer-fall.