Fuirena simplex


Eclog. Amer. 2: 8. 1798.

Synonyms: Fuirena cylindrica Bush Fuirena obtusiflora Vahl Fuirena primiera M. E. Jones Fuirena schiedeana Kunth Fuirena squarrosa var. macrostachya Britton Fuirena zacapana Bartlett
Treatment appears in FNA Volume 23. Treatment on page 36. Mentioned on page 33.

Herbs annual or perennial, mostly cespitose; rhizomes present or absent, if present without cormose buds. Culms tufted or widely spaced, erect to leaning, culm tips hispid-hirsute, internodes glabrous proximal to inflorescence. Leaves: sheaths at culm base or apex sometimes hairy, sheaths at or toward midculm usually glabrous; principal blades linear or lance-linear, flat, 5–20 cm, hispid-ciliate, abaxially hispid, pilose, or glabrous, adaxially glabrous to pilose. Inflorescences of spikelets in clusters 1–3(–5). Spikelets ovoid, lance-ovoid, or cylindric, 8–15(–20) mm, apex acute; fertile scales obovate or oblong, 2–3.5 mm; cusp spreading-excurved, 2/3 or more length of scale; evident ribs 5–7, central 3 convergent to cusp. Flowers: florets 2–3 mm; perianth bristles reaching base of perianth blades or beyond, retrorsely barbellate (sometimes with narrow blades); perianth blades with long claw, ovate, rounded or retuse, rarely acute, apically or subapically bristled, bristle erect or incurved, short to elongate, retrorsely scabridulous; anthers 1–3, 0.5–1.2 mm. Achenes: stipe and beak nearly as long as fruit; body angles pale, faces deep glossy brown, red-brown, or yellow, 1 mm; beak tip narrow, usually papillose.


V23 50-distribution-map.jpg

Ark., Kans., La., Mo., N.Mex., Nebr., Okla., Tex., Mexico, West Indies, Central America, n South America.


Varieties 2 (2 in the flora).

Selected References



1 Plants perennial; anthers 0.9–1.2 mm. Fuirena simplex var. simplex
1 Plants rhizomatous, usually annual; anthers 0.5– 0.6 mm. Fuirena simplex var. aristulata
... more about "Fuirena simplex"
Robert Kral +
Ark. +, Kans. +, La. +, Mo. +, N.Mex. +, Nebr. +, Okla. +, Tex. +, Mexico +, West Indies +, Central America +  and n South America. +
Eclog. Amer. +
W1 +  and Illustrated +
Fuirena cylindrica +, Fuirena obtusiflora +, Fuirena primiera +, Fuirena schiedeana +, Fuirena squarrosa var. macrostachya +  and Fuirena zacapana +
Fuirena simplex +
species +