252 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Salix petrophila Rydb. 

 8. caespitosa Kenn. 



Range : 4, 12, 13, 14. 

 Site : Well-drained, sun. 

 Fruit : Capsule. 

 A small shrub with creeping stems ; occurs on alpine summits. 



Salix phylicifolia, see Salix planifolia. 



Salix piperi Bebb. Piper willow. 



Range: 1, 2. 



Site : Dry, well-drained, moist, sun. 

 Fruit: Capsule. 

 A large shrub to small tree, commonly occurs in sand. 



Salix planifolia Pursh. 



8. chlorophylla Anders., 8. monica Bebb, S. nelsonii Ball, 8. phylicifolia of 

 Amer. auths., not L. 



Range: 4, 12, 13, 14, 15 (Black Hills), 23, 20, 27. 

 Site : Well-drained, sun. 

 Fruit : Capsule. 

 A small to large shrub. 

 Observations: Of slight importance as browse for mule deer. 



Salix prinoides, see Salix discolor. 



Salix pseudolapponum, see Salix glancops. 



Salix pseudomonticola Ball. 



Range: 4, 12, 15 (Black Hills). 

 Site: Well-drained, sun. 

 Fruit: Capsule. 

 A small to large shrub. 



Salix pseudomyrsinites Anders. 



Salia columbiae Mac Br and Nels. 

 Range : 4, 8, 9, 12, 13, 14. 

 Site : Well-drained, sun. 

 Fruit: Capsule. 

 A small to large shrub. 



Salix purpurea L. Basket willow. 



Range: 22, 25, 27, 28, 29. 

 Site : Well-drained, moist, sun. 

 Fruit: Capsule. 

 A large shrub to small tree. 



Salix pyrifolia, see Salix balsamifcra, and 8. monochroma. 

 Salix rostrata, see Salix bibbiana. 

 Salix sandbergii, see Salix lasiolepis. 



Salix saximontana Rydb. 



Range: 12, 13, 14. 

 Site : Moist, sun. 

 Fruit: Capsule. 

 A prostrate shrub; branches occasionally rooting. 



Salix scouleriana Barr. Fire willow. 



S. brachystachys Nutt., 8. capreoides Anders., 8. fiavescens Nutt., S. nut- 

 tallii Sarg., 8. scouleriana crassijulis Anders. 

 Range: 2, 3, 4, 6, 7, 8, 9, 10, 12, 13, 14, 15. 

 Site : Dry, well-drained, moist, sun. 

 Fruit: Capsule. 



A large shrub to small or large tree; rapid growing; easily recovers from 

 grazing ; thicket forming ; a pioneer in burned-over areas. 



Observations: Of fair importance as browse for mule deer. One of the best 

 species of native western range willows as browse for livestock. 



Salix seemanii, see Salix glaucops. 



