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



Salix fragilis L. Crack willow. 



Range : 21, 22, 24, 25, 26, 27, 28, 29. 

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

 Fruit : Capsule. 



A small to large tree; twigs very brittle at base (abcission layer), easily 

 breaking off and rooting. 



Observations: Cottontail rabbit. 



Salix franciscana, see Salix lasiolepis. 



Salix geyeriana Anders. Geyer willow. 



S. macrocarpa Nutt. 



Range : 2, 4, 12, 13, 14, 15. 

 Site : Well-drained, sun. 

 Fruit : Capsule. 

 A small to large shrub. Relished by livestock. 



Salix glaucophylla Bebb. 



Range: 22, 23, 24, 26. 

 Site : Well-drained, moist, sun. 

 Fruit: Capsule. 

 A small to large shrub ; forms extensive thickets ; occurs in sand. 



Salix glaucops Anders. 



/S. fflauca glabrescens of auths., S. nudescens Rydb., 8. pseudolapponum v. 

 Seem., S. seemanii Rydb., S. wyomingensis Rydb. 

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

 Site: Well-drained, sun. 

 Fruit: Capsule. 



A small shrub. An especially important stock-browse plant of the highest 

 summer ranges. 



Salix gooddingii Ball. 



8. nigra of Jeps., not Marsh., 8. vallicola (Dudl. ) Britt. 

 Range: 3, 4, 5, 9, 10, 11, 14. 

 Site : Well-drained, sun. 

 Fruit : Capsule. 



A small shrub to large tree; apparently not tolerant of alkaline conditions; 

 commonly occurs in patches or clumps. 



Observations Of fair importance as browse for mule deer. 



Salix gracilis, see Salix petiolaris. 



Salix harbisonii Schneid. Harbison willow. 



Range: 28, 29, 30. 

 Site : Well-drained, moist, sun. 

 Fruit: Capsule. 

 A small to large tree. 



Salix herbacea L. 

 Range: 26. 



Site: Well-drained, sun. 

 Fruit: Capsule. 

 A creeping plant of mountain peaks. 



Salix hindsiana Benth. Valley willow. 



8. parishiana Rowl., /S. sessilifolia of Calif, auths. 

 Range : 1, 3, 4, 5, 10. 

 Site: Well-drained, moist, sun. 

 Fruit: Capsule. 

 A large shrub to large tree. 



Salix hookeriana Barr. Coast willow. 



Range : 1. 



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



Fruit : Capsule. 



A large, bushy shrub to small or large tree; may occur on or near salt 

 marshes ; commonly occurs in sand, gravel, or muck ; may be buried by sand 

 although often continuing to grow. 



