Fimbristylis puberula var. interior

(Britton) Kral

Sida 4: 135. 1971.

IllustratedEndemic
Basionym: Fimbristylis interior Britton in N. L. Britton and A. Brown, Ill. Fl. N. U.S. ed. 2, 1: 320, fig. 785. 1913
Treatment appears in FNA Volume 23. Treatment on page 130. Mentioned on page 128, 129.

Plants with culm bases tufted; rhizomes orangish, scaly, slender, often contorted, not covered with old leaf-bases. Leaves: backs of leaf-sheaths and of involucral-bracts glabrous; ligule present, usually complete; blades with margins glabrous or very distantly scabridulous, surfaces glabrous. Fertile scales glabrous.


Phenology: Fruiting summer–fall.
Habitat: Moist sands, sandy clays or sandy silts of prairie swales, grassy alluvial terraces along streams
Elevation: 0–1000 m

Distribution

V23 202-distribution-map.jpg

Ariz., Kans., Nebr., N.Mex., Okla., Tex., Utah.

Discussion

Fimbristylis puberula var. interior is like the more slender forms of F. caroliniana in general habit, differing only in the less flattened, more slender scape, the involute leaf blades, and in its less hairy or glabrous spikelet. The Arizona distribution is based on a specimen collected in 1847 by A. Fendler (A. Fendler, 876, GH), who did not provide a precise locality.

Selected References

None.

Lower Taxa

None.
yellowish +  and dark-brown +
reticulate-honeycombed +
lenticular-obovoid +
ascending-branching +, compound +  and simple +
Robert Kral +
(Britton) Kral +
shortened +
deciduous +
swollen +
enlarged +
Fimbristylis interior +
scabridulous +
keeled +, terete +, folded +  and flat +
1mm;2mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
3-5-angled +, compressed +  and terete +
Ariz. +, Kans. +, Nebr. +, N.Mex. +, Okla. +, Tex. +  and Utah. +
0–1000 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist sands, sandy clays or sandy silts of prairie swales, grassy alluvial terraces along streams +
interrupted +  and continuous +
compound +  and simple +
erect +  and spreading +
polystichous +  and distichous +
glabrous;pubescent +
with (1-)3-6(-30) bristles and/or scales +
Fruiting summer–fall. +
2-3(-4)-carpellate +
distinct +
indistinct +
isodiametric +  and rectangular +
3 (?) +  and 1 (?) +
adventitious +
basal +  and proximal +
obtuse-angled;obtuse;ovate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
wand-like +
slender +
1 cm10 mm <br />0.01 m <br /> (?) +
cylindric +
Illustrated +  and Endemic +
single +, 1 +  and 80 +
broadly ovoid;lance-cylindric +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
fimbriate +  and 2-fid +
Fimbristylis puberula var. interior +
Fimbristylis puberula +
variety +
not +  and rhizomatous +