Mary E. Flora of North America Plants perennial; cespitose, rhizomatous. Culms cm, erect, geniculate at the middle nodes; nodes glabrous or pubescent, hairs to 0. Sheaths glabrous or sparsely pilose on the margins; ligules 0. Panicles cm; fascicles mm.
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Kigal From Wikipedia, the free encyclopedia. Its range extends into northern Mexico. Fire Effects Information System, [Online]. The 3 spikelets fall as a unit and leave a characteristic zig-zag naked seed stalk. Plants perennial; cespitose, rhizomatous. It does best on land that is flooded mitica a few days and then dries up.
Vascular Plants of the Gila Wilderness— Pleuraphis mutica It grows on clay with honey mesquite and other species such as burrograss Scleropogon brevifoliusalkali sacaton Sporobolus airoides and sacaton S.
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. Flora of North America. Pleuraphis mutica is perennial grass that is rhizomatous and forms sod. Views Read Edit View history. It is especially valuable during drought when it persists after other grasses die. Plants Profile for Pleuraphis mutica tobosagrass The plant reproduces mainly by spreading by its rhizome, and does not often form viable seeds.
Culms cm, erect, geniculate at the middle nodes; nodes glabrous or pubescent, hairs to 0. Found on mitica, exposed, sandy to rocky slopes and plains, from 2, ft m ; flowers throughout the year. It can umtica cut into hay when still green. The inflorescence is a few centimeters long and is white, strawor purplish.
Hilaria mutica The bases of the stems come from a thick, woody rootstock and a system of roots that penetrates hilaira to 1. Rhizomatous perennial grass; stems cm, erect, geniculate at the mutic nodes, slender, tough and wiry; glabrous or scabrous-puberulent at the nodes. Sheaths glabrous or sparsely pilose on the margins; ligules 0. In areas with adequate precipitation, burning is used to remove litter, which then stimulates the stems to produce more green matter.
This page was last edited on 22 Marchat It is a climax species on frequently flooded lowlands. Pleuraphis mutica is a species of grass known by the common name tobosaor tobosa grass. Hilaria is named for Auguste St. Spikelets are borne in clusters of three. The stems have decumbent bases and erect tops. In other projects Wikispecies.
It is productive and palatable until it becomes rough at maturity. Log In New Account Sitemap. Most of the stiff, hairless leaves are basal.
In Texasit yields pounds per acre, and this can be increased with careful and deliberate management. Habitat types that feature the grass include pinyon-juniper woodland and mesquite, creosote, and grassy shrubsteppe. Pleuraphis mutica is one of the most common species on the semidesert grasslands in the region. Very drought tolerant, this species has the ability to become totally dormant as soil moisture drops. Go To Encyclopedia of Life It also grows on drier soils, and it is somewhat drought -tolerant.
Panicles cm; fascicles mm. 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.
Pleuraphis mutica Conservation status. Hilaria mutica Buckley Benth. Central spikelets with 1 bisexual jutica glumes with 1 or more divergent, dorsal awns, apical lobes, ciliate to finely laciniate, veins excurrent; lemmas exceeding the glumes, bilobed, mucronate.
The culms are not felty pubescent as in H. Hilairea French naturalist; mutica means blunt, probably referring to the shape of the glumes. The grass can cause ergot poisoning if eaten when infested with hilria fungus.
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.
EPPO Global Database
Description[ edit ] Pleuraphis mutica is perennial grass that is rhizomatous and forms sod. The stems have decumbent bases and erect tops. Most of the stiff, hairless leaves are basal. The bases of the stems come from a thick, woody rootstock and a system of roots that penetrates up to 1.