NATIVE WOODY PLANTS OF THE UNITED STATES 251 
Salix nevadensis, see Salia? escigua. 
Salix nigra, see also Salix gooddingii. 
Salix nigra Marsh. Black willow. 
^. marginata Wimm. 
Range : 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. 
Site : Dry, well-drained, moist, sun. 
Fruit : Capsule, available April- June. 
A large shrub to small or large tree; root system spreading; rapid growing, 
especially when young ; short-lived ; much injured by fire, wind, and fungi ; seed 
germination percentage high, vitality transient ; wood used to some extent com- 
mercially. 
Ohservations : White-tailed deer, cottontail rabbit. 
Salix nivalis Hook. 
Range : 4, 12, 13, 14. 
Site; Well-drained, sun. 
Fruit : Capsule. 
A small, prostrate shrub. 
Salix nudescens, see Salix glaucops. 
Salix nuttallii, see Salix scouleriana. 
Salix occidentalis, see Salix longipes. 
Salix orestera Schneid. Sierra willow. 
S. glauca orestera Jeps., S. glauca villosa Bebb (Jeps. et al.). 
Range: 4. 
Site: Moist, sun. 
Fruit: Capsule. 
A small to large, spreading shrub. 
Salix pachnophora, see Salix suhcoerulea. 
Salix padophylla, see Salix monticola. 
Salix pallida, see Salix 'bonplandiana. 
Salix parishiana, see Salix Mndsiana. 
Salix parksiana Ball. 
Range : 1. 
Site : Well-drained, moist, sun. 
Fruit : Capsule. 
A small to large shrub. 
Salix pedicellaris Pursh. " Bog willow. 
S. myrtilloides of auths., not L. 
Range : 26, 27. 
Site : Moist, sun. 
Fruit: Capsule. 
A small shrub. Var. hypoglauca Fern., is in regions 1, 2, 4, 12, 21, 23, and 24. 
Salix pellita Anders. 
Range : 26, 27. 
Site: Well-drained, moist, sun. 
Fruit: Capsule. 
A large shrub to small tree. 
Salix pennata Ball. 
Range: 4, 12. 
Site: Well-drained, sun. 
Fruit: Capsule, available in August. 
A small, spreading shrub. 
Salix perrostrata, see Salix hehdiana. 
Salix petiolaris Smith. 
S. gracilis Anders, 
Range: 13, 15 (Black Hills), 18, 21, 22, 23, 24, 25, 26, 27. 
Site : Well-drained, moist, sun. 
Fruit: Capsule. 
A small to large shrub. 
