252 ^^I^C. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 
Salix petrophila Rydb. 
S. caespitosa Kenn. 
Range : 4, 12, 13, 14. 
Site: "Well-drained, sun. 
Frnit : Capsule. 
A small shrub witb 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. 
^S'. chJorophyUa Anders., .S. monica Bebb, ;S^. neJsonii Ball, 8. pliijlicifolia of 
Amer. auths., not L. 
Range: 4, 12, 13, 14, 15 (Black Hills), 23, 26, 27. 
Site : Well-drained, sun. 
Fruit: Capsule. 
A small to large shrub. 
Ohservations: Of slight importance as browse for mule deer. 
Salix prinoides, see Salix discolor. 
Salix pse-adolapponiim, see Salix glaucops. 
Salix pseudoinonticola Ball. 
Range: 4. 12, 15 (Black Hills). 
Site: Well-drained, sun. 
Fruit : Capsule. 
A small to large shrub. 
Salix psendomyrsinites Anders. 
Saliw columMae 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 halsamifera. and S. monochroma. 
Salix rostrata, see Salix hibhiatia. 
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. hracJiystachi/s Nutt., /S*. capreoides Anders., S. flavescens Nutt., S. nut- 
taJUi Sarg., S. scouleriana' crassijulis Anders. 
Range : 2, 3, 4, 6. 7, 8, 9, 10, 12, 13, 14, 15. 
Site: Dry, vrell-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. 
Ohservations: Of fair importance as browse for mule deer. One of the best 
species of native western range willows as browse for livestock. 
Sails seemanii, see Salix glaucops. 
