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

stdcommconcept4388543885

View Community Concepts - Detail

Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland | NatureServe Biotics 2019
click to update datacart
Name: Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland Reference: NatureServe Biotics 2019 Description: These woodlands are found discontinuously along the coast between northern California and southwestern Washington. This woodland association occurs on all aspects on dry, partially-stabilized sand ridges, slopes, and flats, between open sand and the forest edge. Stands also occur on dry deflation plains. Requirements seem to be minimal sand movement, and well-drained, exposed sites. <i>Pinus contorta var. contorta</i> dominates the very open canopy, with stunted trees averaging 31% cover. Young <i>Pseudotsuga menziesii</i> or <i>Picea sitchensis</i> trees can occasionally be found. All stands are dominated by conspicuous mats of <i>Arctostaphylos uva-ursi</i>, reindeer lichens and mosses. Common species of lichens and mosses include <i>Cladina portentosa ssp. pacifica, Cladonia cervicornis ssp. verticillata, Racomitrium ericoides, Polytrichum juniperinum</i> and <i>Polytrichum piliferum</i>. These cryptogams form thin, fragile mats growing over bare sand, with very little organic matter. <i>Arctostaphylos uva-ursi</i> may cover up to 75% of stands, mosses up to 80%, and lichens up to 25%. The early seral status of the association is confirmed by the virtual lack of dead trees, and live basal area is the lowest of any forest or woodland association described from coastal dunes. The shrub layer is depauperate, and most vegetation is confined to the ground layer. <i>Pteridium aquilinum, Aira caryophyllea</i> and <i>Allotropa virgata</i> may be conspicuous. Areas of open sand often contain remnants of earlier seral stages, such as <i>Festuca rubra, Poa macrantha</i> or <i>Lupinus littoralis</i>. These woodlands are easily distinguished by the open and low-shrub understory and dense lichen mats. The type is the only <i>Pinus contorta var. contorta</i> woodland with significant cover of <i>Arctostaphylos uva-ursi</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:31513-{B75DAC0F-E1B5-4141-A854-B2EF571D95B3} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: ongoing
	status: accepted Community's Parent: Pinus contorta var. contorta Sand Dune Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.688683 NatureServe Explorer   Code: CEGL002605   Translated: Beach Pine / Kinnikinnick Woodland   Scientific: Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland (convergence) and Synonyms: (similar) CEGL002605 (similar) Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland (similar) Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland