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Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This association is restricted to the Columbia Basin and Okanogan Valley in Washington State and has been reported from southeastern Idaho. It may also occur in British Columbia, Canada. Sandy to gravelly soils or low fertility soils (old weathered volcanic ash) are associated with this type. This is an open to closed vegetation type with most of its total cover found in only two lifeforms: shrub and mid-tall bunch grasses. Artemisia tripartita, typically less than 2 feet tall, dominates the open shrub layer that typically contributes 10-30% to total plant cover. Artemisia tridentata ssp. wyomingensis, Purshia tridentata, and Ericameria spp. (= Chrysothamnus spp.) can be present or codominant especially on disturbed sites. The general appearance of the community is a bunchgrass community with Hesperostipa comata (= Stipa comata) dominating the midgrass layer. Some stands have a short bunchgrass layer of Poa secunda. Broad-leaved herbs typically contribute little to the composition of individual sites although a wide variety of species can grow in these communities. Frequently observed forbs are Lupinus leucophyllus, Calochortus macrocarpus, and Erigeron pumilus. Annual grasses and forbs are common and can be diverse. Disturbed sites will have Bromus tectorum and Vulpia bromoides among many other exotic species. A diverse ground moss and lichen layer can cover much of the space between vascular plants, although it is displaced with ground disturbance. Climatically, this community occurs on cooler and more moist sites than sites of Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Shrubland (CEGL001051).  Accession Code: VB.CC.25056.ARTEMISIATRIPAR Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Artemisia tripartita ssp. tripartita Shrub Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Threetip Sagebrush / Needle-and-Thread Shrub Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.688397 NatureServe Explorer   Code: CEGL001539   Scientific: Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation   Common: Threetip Sagebrush / Needle-and-Thread (convergence) and Synonyms: (undetermined) Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation