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Polemonium spp. - Castilleja spp. - Trisetum spp. Alpine Rock Alliance | NatureServe Biotics 2019
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Name: Polemonium spp. - Castilleja spp. - Trisetum spp. Alpine Rock Alliance Reference: NatureServe Biotics 2019 Description: This dwarf-shrub and herbaceous alliance consists of barren and sparsely vegetated rock outcrops and cliff faces located in Great Basin. Total cover does not exceed 10% and may be as little as 1%. The characteristic dwarf-shrub is <i>Petrophytum caespitosum</i>. Dominant herbaceous species include <i>Castilleja nana, Hulsea algida, Polemonium viscosum</i>, and <i>Selaginella watsonii</i>. <i>Ericameria discoidea, Juniperus communis</i>, and <i>Ribes montigenum</i> are common shrub associates. Herbaceous species may include <i>Androsace septentrionalis, Arenaria congesta, Astragalus kentrophyta, Astragalus kentrophyta var. tegetarius, Erigeron tener, Eriogonum holmgrenii, Hulsea algida, Phlox pulvinata, Poa secunda, Potentilla nivea</i>, and <i>Trisetum spicatum</i>. The spikemoss <i>Selaginella watsonii</i> may be characteristic on some sites. These communities are known from elevations ranging from 3155 to 3635 m (10,348-11,933 feet) on flat to steep slopes. Sites include low to high slopes, ridges and summits on moraines with substrates composed of talus, scree, bedrock and glacial till. Soils are extremely thin and rapidly drained.  Accession Code: urn:lsid:vegbank.org:commConcept:39298-{530CB549-3488-4027-AEED-2DF5EAD58DB5} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Sep-2014 to: ongoing
	status: accepted Community's Parent: Dryas octopetala - Saxifraga spp. Rocky Mountain Alpine Bedrock & Scree Group This Community's Level: Alliance This Community's Children: Show/Hide   Hulsea algida - Selaginella watsonii Alpine Sparse Vegetation   Polemonium viscosum - Castilleja nana Alpine Rock Sparse Vegetation		Names:   UID: ELEMENT_GLOBAL.2.904997 NatureServe Explorer   Code: A4088   Translated: Jacob's-ladder species - Indian-paintbrush species - Oatgrass species Alpine Rock Alliance   Common: Jacob's ladder - Indian-paintbrush - Oatgrass Alpine Rock   Scientific: Polemonium spp. - Castilleja spp. - Trisetum spp. Alpine Rock Alliance