130 MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



SCIENTIFIC NAMES. 

 Species starred (*) are introduced and are mostly weeds. 



Abies grandis, Lindl. White Fir. 



Abies lasiocarpa, Nutt. Balsam ; Balsam Fir ; Alpine Fir. 

 . Abronia micrantha, Chois. and other species. Sand Puffs. 

 Acer glabrum, Torr. Mountain Maple; Shrub Maple. 

 Achillea lanulosa, Nutt. Milfoil ; Wild Tansy ; Yarrow. 

 Aeonitum Columbianum, Nutt. Monkshood ; Wolfsbane ; Aconite. 

 Actaea spicata, L. and A. rubra, W'illd. Baneberry. 

 Actinella acaulis, Nutt. Marigold. 

 Agropyron divergens, Nees. Bunch-grass. 

 Agropyron occidentale, Scribn. & spp. Blue-joint; Blue-stem. 

 Agropyron tenerum, Yasey. Rye-grass. 

 Alectoria Fremontii, Tuckerm. Black Moss ; Tree Moss (on Con- 



ifers). 



Allium Sibericum, L. & spp. Wild Onion ; Wild Garlic ; Garlic. 

 Alnus sinuata, Rydb. Moutain Alder. 

 Alnus tenuifolia, Nutt. Alder. 

 Amaranthus albus, L. Tumble-weed, from its tumbling habit in 



the winter. 

 Amaranthus blitoides, Wats. Pursely ; Pigweed Pursely, from its 



resemblance to the Eastern Purslane (Portulaca olcracea). 

 '-Amaranthus retroflexus, L. Pigweed ; Careless-weed. 

 -Ambrosia artemisiaefolia, L. Ragweed. 

 f Ambrosia trifida, L. Tall Ragweed ; Horse-weed. 

 Amelanchier alnifolia, Nutt. Sarvice-berry ; Juneberry ; Shad- 



berry. 



Ampelopsis quinquefolia, Michx. Virginia Creeper. 

 Anemone patens Nuttalliana, Gray. Cowslip ; Wind Flower ; Cat's 



Eye ; Blue Tulip ; Blue Anemone ; Badgers (when peeping through 



the ground in early spring) ; Lion's Beard (from its feathery 



fruit) . 



s:: Anthemis Cotula, DC. Mayweed ; Dog Fennel. 

 Aphyllon fasciculatum, Gray. Cancer Root ( a reputed remedy for 



this disease). 



Aplopappus acaulis glabratus, Eaton. Golden Aster. 

 Apocynum androsasmifolium, L. Sarsaparilla. 

 Apocynum cannabinum, L. and A. androsaemifolium, L. Indian 



Hemp. 



