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[edit]. 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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It is a climax species on frequently flooded lowlands. The stems have decumbent bases and erect tops. Its range extends into northern Mexico. Retrieved from ” https: It also occurs on upland territory.

Hilaria mutica – Wikispecies

The plant reproduces mainly by spreading by its rhizome, and does not often form viable seeds. Retrieved January 15, Flora of North America Plants perennial; cespitose, rhizomatous. Hilaria mutica Buckley Benth. Pleuraphis mutica Conservation status. The culms are not felty pubescent as in H. It grows on clay with honey mesquite and other species such as burrograss Scleropogon brevifoliusalkali sacaton Sporobolus airoides and sacaton S.

Habitat types that feature the grass include pinyon-juniper woodland and mesquite, creosote, and grassy shrubsteppe.

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 is productive and palatable until it becomes mutjca at maturity.

Hilaria mutica

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.

The grass can cause ergot poisoning if eaten when mtuica with the fungus. Hilaria is named for Auguste St. FNAGould Fire Effects Information System, [Online]. Found on dry, exposed, sandy to rocky slopes and plains, from 2, ft m ; flowers throughout the year.

From Wikipedia, the free encyclopedia. Panicles cm; fascicles mm. Culms cm, erect, geniculate at the middle nodes; nodes glabrous or hilria, hairs to 0.

Central spikelets with 1 bisexual floret; glumes with 1 or more divergent, dorsal awns, apical lobes, ciliate to finely muticw, veins excurrent; lemmas exceeding the glumes, bilobed, mucronate. By using this site, you agree to the Terms of Use and Privacy Policy.

Articles with ‘species’ microformats. Hilairea French naturalist; mutica means blunt, probably referring to the shape of the glumes. Sheaths glabrous or sparsely pilose on the margins; ligules 0.

Vascular Plants of the Gila Wilderness

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.

Mutlca perennial grass; stems cm, erect, geniculate at the middle nodes, slender, tough and wiry; glabrous or scabrous-puberulent at the nodes. Pleuraphis mutica is perennial grass that is rhizomatous and forms sod. Most of the stiff, hairless leaves are basal.


Pleuraphis mutica is one of the most common species on the semidesert grasslands in the region. Plants perennial; cespitose, rhizomatous.

In Texasit yields pounds per acre, and this can be increased muticw careful and deliberate management. This page was last edited on 22 Marchat The bases of the stems come from a thick, woody rootstock and a system of roots that penetrates up to 1. It also grows on drier soils, and it is somewhat drought -tolerant.

It does best on land that is flooded for a few days and then dries up. It is especially valuable during drought when it persists after other grasses die. The 3 spikelets fall as a unit and leave a characteristic zig-zag naked seed stalk.

The inflorescence is a few centimeters long and is white, strawor purplish. In other projects Wikispecies.

Go To Encyclopedia of Life Log In New Account Sitemap. Hilaria mutica grows in level upland areas and desert valleys subject to occasional flooding but lacking permanent streams.