226 INDEX 



Tansybush (desertsweet) ; Chamaebatiaria millefolium 203 



Tetradymia; horsebrush 



canescens; gray h 79, 136 



= T. canescens var. inermis 

 = T. inermis 



glabrata; littleleaf h 79, 136 



inermis. See T. canescens. 



spinosa; cottonthorn h 10, 110 



Thimbleberry, western; Rubus parviflorus 42, 138 



Toxicodendron; poison-ivy, poison-oak 

 = Rhus. in part 



diversilobum; Pacific poison-oak 87, 136 



= Rhus diversiloba 

 hesperium. See T. radicans var. rydbergii. 



radicans var. rydbergii; western poison-ivy 87, 136 



= T. hesperium 



= T. rydbergii 



= Rhus radicans var. rydbergii 



— "Rhus toxicodendron" of some authors, NOT L. 



Twinflower, American; Linnaea borealis var. americana 174 



Vaccinium; bilberry, blueberry, "huckleberry," whortleberry 

 arbuscula. See V. cespitosum var. arbuscula. 



cespitosum; dwarf blueberry 73, 142 



cespitosum var. arbuscula; taller dwarf blueberry 73, 142 



= V. arbuscula 



deliciosum; delicious blueberry 70, 142 



globulare; globeflower whortleberry - 140 



macrophyllum. See V. membranaceum. 



membranaceum; big whortleberry 70, 140 



= V. macrophyllum 

 microphyllum. See V. scoparium. 

 myrtillus microphyllum. See V. scoparium. 



occidentale; westernbog blueberry 67, 142 



ovalifolium; ovalleaf whortleberry 70, 140 



scoparium; grouse whortleberry 69, 140 



= V. microphyllum of some authors, NOT Reinw. 

 = V. myrtillus var. microphyllum 



Viburnum; viburnum 



edule; moose wood (or squashberry) v 92 165 



= V. pauciftorum 

 pauciflorum. See V. edule. 



Viburnum, moosewood (also called squashberry v.); Viburnum edule 92, 165 



Virginsbower, western; Clematis ligusticifolia 101, 158 



Wahoo, western (western burningbush); Euonymus occidentalism. 96 



Whortleberry; Vaccinium 



big; V. membranaceum 70 140 



globeflower; V. globulare ' 140 



grouse; V. scoparium 69 140 



ovalleaf; V. ovalifolium 70 140 



Willow; Salix 30' 116 



arroyo; S. lasiolepis 37 



Barclay ; S. barclayi 38 



beautiful ; S. drummondiana var. bella 34 



Bebb; S. bebbiana 37 



blue; S. drummondiana var. subcoerulea 34 



coyote ; S. exigua 31 



dusky; S. melanopsis 31 



firmleaf; S. pseudocordata 38 



( lever ; S. geyeriana 37 



greensides ; S. monochroma 40 



Mackenzie ; S. mackenziana 38 



Pacific; S. lasiandra 32 



1>( sachleaf; S. amygdaloides 32 



Scolder ; S. scouleriana 34 



silverleaf; S. argophylla 31 



-mi ku; S. sitchensis 34 



