File:Vegetation of Oregon and Washington (1969) (20385832250).jpg

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Title: Vegetation of Oregon and Washington
Identifier: CAT92272720 (find matches)
Year: 1969 (1960s)
Authors: Franklin, Jerry F. cn; Dyrness, C. T
Subjects: Botany Oregon Ecology; Botany Washington (State) Ecology
Publisher: Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Community Composition Driscoll (1962, 1964a, 1964b) has pro- vided the only comprehensive description of communities in the Juniperus occidentalis Zone. His general description of the vegeta- tion of the zone is as follows (Driscoll 1964b): Juniperus occidentalis is the dominant tree species of the area. An occasional Pinus ponderosa may be found in canyon bottoms or on north slopes where soil moisture is more effective. Natural wide spacing of individual junipers provides the aspect of a savanna .... Artemisia triden- tata is most often the dominant shrub in the understory. Occasionally it is dis- placed wholly or to codominance by Purshia tridentata. Other shrubs charac- teristic of the area are Chrysothamnus nauseosus, C. viscidiflorus, Tetradymia canescens, Leptodactylon pungens, and Artemisia arbuscula. Ribes cereum, Gros- sularia velutina, (Ribes velutinum), and Grayia spinosa occur infrequently. Suf- frutescents are represented by various spe- cies of Eriogonum. Agropyron spicatum and Festuca ida- hoensis are the characteristic grasses of relatively undisturbed communities. Poa secunda and Stipa thurberiana are com- mon. Other grasses include Sitanion hystrix, Stipa comata, Bromus tec- torum, Festuca octoflora, and Koeleria cristata. Forbs commonly do not constitute major components of relatively undis- turbed communities. Some of the more common perennial forbs are Agoseris sp., Achillea millefolium, Eriophyllum la- natum, Astragalus spp., Erigeron linearis, and Lupinus spp. 109

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https://www.flickr.com/photos/internetarchivebookimages/20385832250/

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Franklin, Jerry F. cn;

Dyrness, C. T
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Flickr tags
InfoField
  • bookid:CAT92272720
  • bookyear:1969
  • bookdecade:1960
  • bookcentury:1900
  • bookauthor:Franklin_Jerry_F_cn
  • bookauthor:Dyrness_C_T
  • booksubject:Botany_Oregon_Ecology
  • booksubject:Botany_Washington_State_Ecology
  • bookpublisher:Portland_Or_Pacific_Northwest_Forest_and_Range_Experiment_Station_U_S_Dept_of_Agriculture
  • bookcontributor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • booksponsor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • bookleafnumber:121
  • bookcollection:usda_usfspacificnorthwestregion
  • bookcollection:usdanationalagriculturallibrary
  • bookcollection:fedlink
  • bookcollection:americana
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
14 August 2015



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