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Panicum bulbosum Temporarily Flooded Herbaceous Alliance | Western Ecology Working Group of...
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Name: Panicum bulbosum Temporarily Flooded Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Vegetation in this alliance is dominated by perennial grasses. Grasslands in this alliance occur in draws and arroyos in southwestern New Mexico. Elevation ranges from 1400-1900 m in areas upland of the Chihuahuan desertscrub. Climate is semi-arid with most of the 25-43 cm of precipitation falling during the late summer and early fall monsoon period. Because stands of this alliances are usually found in draws, these grasslands are temporarily flooded with runoff and gully flow during the typically high-intensity convection storms common during the monsoon season. These minor grasslands are restricted to these relatively mesic sites and are tolerant of the disturbance caused by gully erosion. One stand in this alliance had ground cover of 5% bare soil, 5% gravel, 25% rock, 60% litter, and 5% vegetation. The substrate is derived from rhyolite. This semi-desert grassland has a dense graminoid layer that is usually dominated by the perennial bunchgrass Panicum bulbosum. Alopecurus aequalis and/or Lycurus phleoides may codominate with Panicum bulbosum. Several other graminoid species are often present but do not add up to much cover. Forbs are usually very sparse. Scattered shrub and tree species, such as Cercocarpus montanus and Fraxinus velutina, may also be present. One stand had canopy cover of 20% Panicum bulbosum and 40% Alopecurus aequalis. Other graminoids included Cyperus parishii, Eleocharis macrostachya, Leptochloa dubia, Panicum hirticaule var. stramineum (= Panicum stramineum), Setaria grisebachii, and others.  Accession Code: VB.CC.18745.PANICUMBULBOSUM Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Panicum bulbosum Temporarily Flooded Herbaceous Alliance   Translated: Bulb Panicgrass Temporarily Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125777 NatureServe Explorer   Code: A.1356