Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

stdcommconcept1925919259

View Community Concepts - Detail

Poa lettermanii Herbaceous Alliance | Western Ecology Working Group of...
click to update datacart
Name: Poa lettermanii Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Vegetation in this alliance occurs in the alpine tundra in the Colorado Front Range. The climate regime is continental, with long, cold winters and short summers with frequent afternoon thunderstorms. Strong westerly winds are common in the winter. Stands are primarily located on high-elevation peaks (>3900 m), but occur down to 3500 m on these peaks as well. Stands are found on northwest- and southwest-facing slopes that are snow-covered in winter. Stands occur on cold, moist microsites on wet rocks and gravel that receive a temporary supply of water during the growing season. Soils are young and poorly developed due to low soil temperature, low soil moisture during the summer, and a short growing season. Soils are classified as Entisols (Cryorthents). The soil profile has only one thin horizon. The vegetation in the alliance occurs on wet rocks and gravel and is dominated by mosses. Several moss species are abundant, including Polytrichastrum alpinum, Polytrichum piliferum, and Didymodon vinealis var. brachyphyllus (= Barbula brachyphyllus). The lichens Cladonia pyxidata and Stereocaulon alpinum are common associates. The herbaceous canopy is species-poor; Poa lettermanii dominates and Stellaria umbellata is constant.  Accession Code: VB.CC.19259.POALETTERMANIIH 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:   Translated: Letterman's Bluegrass Herbaceous Alliance   Scientific: Poa lettermanii Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125805 NatureServe Explorer   Code: A.1327