Life Span
Perennial
Perennial
Type
Needled or Scaled Evergreen
Tree
Origin
Western United States, Canada, Mexico
Europe, Western Asia
Types
Pinus albicaulis, Pinus monticola
Salix discolor, Salix caprea, Salix chaenomeloides
Number of Varieties
22
0
40000
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Habitat
Dry areas
Deciduous forests, ditches, Roadsides, secondary forest, Swamps
USDA Hardiness Zone
3-75-9
0
99
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AHS Heat Zone
7-1
9-5
Sunset Zone
A1, A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Upright/Erect