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© Utah State University

© Utah State University

Vegetative Morphology

 
Culms to 70 cm.
Ligules 0.7-2.6 mm, glabrous, erose.
Blades 8-18 cm long, 2-10 mm wide, flat.

Reproductive Morphology

 
Panicles 15-20 cm long, 1.5-2.5 cm wide, nodding, not spikelike, spikelets loosely arranged.
Spikelets 4-5.2 mm.
Lower glumes about 1/3 as wide as the upper glumes.
Upper glumes 3-3.9 mm, elliptical to oblanceolate, width/length ratio 0.17-0.26.
Lowest lemmas 3.1-4.2 mm, glabrous.
Distal lemmas glabrous, rarely minutely scabrous distally, unawned.
Anthers 0.2-0.7 mm.

Chromosome Number(s)

2n = 14

Typical Habitat(s)

Found in forest bottoms along bayous and streams from 0-50 meters.

Nativity / Range

Found in Texas, Arkansas, and Louisiana.

Name/Synonymy Publication Info

Sphenopholis longiflora (Vasey ex L.H. Dewey) Hitchc., J. Wash. Acad. Sci. 23:453 (1933). Eatonia pensylvanica [as "pennsylvanica"] var. longiflora Vasey ex L.H. Dewey in J.M. Coulter, Contr. U.S. Natl. Herb. 23:544 (1894); Eatonia longiflora (Vasey ex L.H. Dewey) Beal, Grasses N. Amer. 2:494 (1896); Sphenopholis pallens subsp. longiflora (Vasey ex L.H. Dewey) Scribner, Rhodora 8:145 (1906); Reboulea pallens var. longiflora (Vasey ex L.H. Dewey) Farw., Rep. (Annual) Michigan Acad. Sci. 17:182 (1916). TYPE: U.S.A., Texas: Harris County, Houston; 1892; G.C. Nealley.

Treatment From

T.F. Daniel.  Sphenopholis in Flora of North America, volume 24.  In prep.  Oxford University Press.

Fact Sheet Developed By

Pedro Oñativia Lake © 2006