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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Tree > Species: Rhododendron macrophyllum | Pacific Rhododendron
 

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DISTRIBUTION AND OCCURRENCE

SPECIES: Rhododendron macrophyllum | Pacific Rhododendron
GENERAL DISTRIBUTION : Pacific rhododendron is found along the Pacific Coast from British Columbia to Monterey County in California [30,41]. It is widely distributed in the Coast and Cascade Mountain Ranges [9,30,43]. Pacific rhododendron is less abundant in the Coastal Mountains of Washington and northern Oregon and more common south of the Siuslaw River [27]. ECOSYSTEMS : FRES20 Douglas-fir FRES21 Ponderosa pine FRES23 Fir - spruce FRES24 Hemlock - Sitka spruce FRES27 Redwood STATES : CA OR WA BC ADMINISTRATIVE UNITS : NOCA OLYM REDW BLM PHYSIOGRAPHIC REGIONS : 1 Northern Pacific Border 2 Cascade Mountains KUCHLER PLANT ASSOCIATIONS : K001 Spruce - cedar - hemlock forest K002 Cedar - hemlock - Douglas-fir forest K003 Silver fir - Douglas-fir forest K004 Fir - hemlock forest K005 Mixed conifer forest K006 Redwood forest K009 Pine - cypress forest K029 California mixed evergreen forest SAF COVER TYPES : 224 Western hemlock 225 Western hemlock - Sitka spruce 226 Coastal true fir - hemlock 229 Pacific Douglas-fir 230 Douglas-fir - western hemlock 231 Port Orford-cedar 232 Redwood 234 Douglas-fir - tanoak - Pacific madrone SRM (RANGELAND) COVER TYPES : NO-ENTRY HABITAT TYPES AND PLANT COMMUNITIES : In the western hemlock (Tsuga heterophylla) zone of northwestern Oregon, Pacific rhododendron is an indicator of cool, dry to mesic environments [22]. Published classification schemes listing Pacific rhododendron as an indicator species or a dominant part of vegetation are presented below. Preliminary plant associations of the Siskiyou Mountain Province [1] The tanoak series of the Siskiyou Region of southwest Oregon [2] A preliminary classification of forest communities in the central portion of the western Cascades in Oregon [12] Vegetation of the Douglas-fir region [14] Ecoclass coding system for the Pacific Northwest plant associations [18] Plant association and management guide for the western hemlock zone: Mt. Hood National Forest [22] Vegetation mapping and community description of a small western Cascade watershed [25] Plant association and management guide for the Pacific silver fir zone: Mt. Hood and Willamette National Forests [26] Plant association and management guide: Siuslaw National Forest [27] Plant association and management guide: Willamette National Forest [28] Riparian zone associations: Dessschutes, Ochoco, Fremont, and Winema National Forests [61]

Related categories for Species: Rhododendron macrophyllum | Pacific Rhododendron

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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