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Achnatherum lemmonii / Racomitrium canescens Grassland | NatureServe Biotics 2019
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Name: Achnatherum lemmonii / Racomitrium canescens Grassland Reference: NatureServe Biotics 2019 Description: This type is currently only known from the southern end of the Willamette Valley in Oregon. The bunchgrass <i>Achnatherum lemmonii</i> and the moss <i>Racomitrium canescens</i> dominate this sparse, bunchgrass association found on hilltop balds along valley margins. Cover values are not available, but frequency in 0.01-m2 plots show <i>Achnatherum</i> from 15-56% and <i>Racomitrium</i> from (74-100%). Other native bunchgrasses include <i>Festuca idahoensis</i> and <i>Koeleria macrantha</i>. <i>Quercus garryana</i> trees are usually found on the margins of this type, but most areas are two shallow soiled to support much tree or shrub growth. <i>Toxicodendron diversilobum</i> is found under the isolated trees, and on the margins of these grasslands. Native forbs from this grass bald include <i>Trifolium microcephalum, Viola douglasii, Lotus micranthus, Allium amplectens</i>, and <i>Eriogonum nudum</i>. Exotic grasses which invaded the sites include <i>Aira caryophyllea, Bromus hordeaceus, Bromus diandrus ssp. rigidus, Cynosurus echinatus, Holcus lanatus</i>, and <i>Arrhenatherum elatius</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:30709-{8F3603BD-8D4F-45BA-835C-69B55D4CEF99} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 19-Jan-1994 to: ongoing
	status: accepted Community's Parent: Festuca rubra - Calamagrostis nutkaensis Exposed Coastal Headland Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685627 NatureServe Explorer   Code: CEGL001800   Translated: Lemmon's Needlegrass / Silver Moss Grassland   Common: Lemmon's Needlegrass / Silver Moss Grassland   Scientific: Achnatherum lemmonii / Racomitrium canescens Grassland (convergence) and Synonyms: (similar) CEGL001800 (similar) Achnatherum lemmonii / Racomitrium canescens Herbaceous Vegetation (similar) Achnatherum lemmonii / Racomitrium canescens Herbaceous Vegetation