The scientific name of tobosagrass is Pleuraphis mutica Buckley (Poaceae) [71, 79,81,95]. SYNONYMS: Hilaria mutica (Buckl.) Benth. [1,6,57,71,78,79,82,95]. Name. Hilaria mutica (Buckley) Benth., Pleuraphis mutica Buckley Hilaria mutica in World Checklist of Selected Plant Families. Pleuraphis mutica. Pleuraphis mutica Buckley. Tobosa Grass, Tobosagrass. Poaceae (Grass Family). Synonym(s): Hilaria mutica.
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Hilaria mutica Buckley Benth.
In Texasit yields pounds per acre, and this can be increased with careful and deliberate management. It is productive and palatable until it becomes rough at maturity. Rhizomatous perennial grass; stems cm, erect, geniculate at the middle nodes, slender, tough and wiry; glabrous or scabrous-puberulent at the nodes. Culms cm, erect, geniculate at the middle nodes; nodes glabrous or pubescent, hairs to 0. Very drought tolerant, this species has the ability to become totally dormant as soil moisture drops.
Spikes cm long with spikelet clusters, these mostly mm long; the clusters have 3 spikelets and disarticulate as a unit, leaving zig-zag rachises; the three spikelets are subequal, with tuft of hairs mostly mm long at the base; glumes thin, papery, dorsally awned, awns not exceeding apices, veins excurrent; lemmas longer than glumes. It is a climax species on frequently flooded lowlands.
It grows on clay with honey mesquite and other species such as burrograss Scleropogon brevifoliusalkali sacaton Sporobolus airoides and sacaton S. Retrieved January 15, Go To Encyclopedia of Life Sheaths glabrous or sparsely pilose on the margins; ligules 0. Views Read Edit View history. Flora of North America.
Pleuraphis mutica is perennial grass that is rhizomatous and forms sod. The inflorescence is a few centimeters long and is white, strawor purplish. Hilaria is named for Auguste St.
Panicles cm; fascicles gilaria. It can be cut into hay when still green. Retrieved from ” https: Pleuraphis mutica is one of the most common species on the semidesert grasslands in the region.
Pleuraphis mutica is a species of grass known by the common name tobosaor tobosa grass. FNAGould Most of the stiff, hairless leaves are basal. Flora of North America Plants perennial; cespitose, rhizomatous. The grass can cause ergot poisoning if eaten when infested with the fungus.
The 3 spikelets fall as a unit and leave a characteristic zig-zag naked seed stalk. Log In New Account Sitemap. It is especially valuable during drought when it persists after other grasses die.
Spikelets are borne in clusters of three. The genus is distinguished by the rigid inflorescence spikes which produce groups of 3 sessile, awned spikelets, that when mature, have conspicuous tan-white papery bracts glumes which often splay out.
It also occurs on upland territory. Sheaths glabrous or sparsely pilose on the margins, blades mm wide, cm long, flat or rolled, glabrous to scabrous with papillose-based hairs behind the ligules; ligules 0. Plants perennial; cespitose, rhizomatous. Fire Effects Information System, [Online]. Lateral spikelets with 1 or 2 4 staminate florets; glumes not conspicuously fused basally, thin, papery, flabellate, dorsally awned, awns not exceeding the apices, apical lobes rounded, ciliate to finely laciniate, veins not or scarcely excurrent; anthers 3, 2.
It also grows on drier soils, and it is somewhat drought -tolerant. The plant reproduces mainly by spreading by its rhizome, and does not often form viable seeds.
The culms are not felty pubescent as in H. Articles with ‘species’ microformats. The stems have decumbent bases and erect tops. It does best on land that is flooded for a few days and then dries up. Hilairea French naturalist; mutica means blunt, probably referring to the shape of the glumes.
Pleuraphis mutica Calflora
Its range extends into northern Mexico. From Wikipedia, the free encyclopedia. Central spikelets with 1 bisexual floret; glumes with 1 or more divergent, dorsal awns, apical lobes, ciliate to finely laciniate, veins excurrent; lemmas exceeding the glumes, bilobed, mucronate. Habitat types that feature the grass include pinyon-juniper woodland and mesquite, creosote, and grassy shrubsteppe. Pleuraphis mutica Conservation status. In other projects Wikispecies. Hilaria mutica grows in level upland areas and desert valleys subject to occasional flooding but lacking permanent streams.