COMMON NAMES OF MONTANA PLANTS. 123 



Mountain Ash; Pyrus sambucifolia. C. & S. 



Mountain Birch; I>etula microphylla, Bunge. 



Mountain Clover; Trifolium species. 



Mountain Laurel; Ceanothus velutinus, Dougl. 



Mountain Lily; Calochortns Nuttallii, T. & G. ; Lilium montanum, 



Nelson. 



Mountain Mahogany; Cercocarpus ledifolius, Nutt. 

 Mountain Maple; Acer glabrum, Torr. 

 Mountain Pink; Douglasia species. 

 Mountain Primrose; Oenothera csespitosa, Nutt. 

 Mountain Thistle; Cnicus eriocephalus, Gray. 

 Mountain Timothy; Phleum alpinum, L. 

 Mullein; Verbascum Thapsus, L. 



Narrow-leaved Cottonwood; Populus angustifolia, James. 

 Nettle; Urtica gracilis, Ait. 

 Nigger-head; Rudbeckia occidentalis, Nutt. 

 Nut Pine ; Finns albicaulis, Engehn. ; P. flexilis, James. 

 Oak-leaved Goosefcot; Chenopodium glaucum, L. 

 Old-man; Artemisia frigida, Willd. 

 Old-man Graybeard; Cnicus eriocephalus, Gray. 

 Old-man's Whiskers; Geum triflorum, Pursh (in fruit); Clematis 



Douglasii, Hook, in fruit. 

 Oregon Grape; Berberis repens, Lin ell. 

 Ox-eye Daisy; Chrysanthemum Leucanthemum, L. 

 Paint-brush f Castilleia. 

 Paint-cup; Castilleia species. 

 Paper Birch; Betula papyrifera, Marsh. 

 Partridgeberry ; Symphoricarpus species. 

 Pennycress ; Thlaspi arvense, L. 

 Pepper-grass; Lepidium apetalum, Willd. 

 Pig's-feet; Astragalus caryocarpus, Ker. in bloom. 

 Pigweed; Amaranthus retroflexus, L. ; Chenopodium album, L. 

 Pigweed Pursely; Amaranthus blitoides, Wats. 

 Pin Clover; Erodium cicutarium, L'Her. 



Pine-grass; Xerophyllum tenax, Nutt. & X. Douglasii, Wats. 

 Pink Violet; Viola Canadensis, L. 

 Pitch Pine; Pinus albicaulis, Engelm. 

 Plantain; Plantago Asiatica, L. ; P. major, L. 

 Prison Oak; Rhus Toxicodendron, L. ; R. Rydbergii, ?mali. 

 Pomme Blanche; Pomme de Prairie; Psoralea esculenta, Pursh. 

 Porcupine Grass; Stipa comata, F. & R. ; S. spartea, Trin. 



