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Salix prolixa
Salix prolixa Andersson
Mackenzie's Willow, Mackenzie Willow
Salicaceae (Willow Family)
Synonym(s): Salix cordata var. mackenzieana, Salix eriocephala ssp. mackenzieana, Salix eriocephala var. mackenzieana, Salix mackenzieana, Salix mackenzieana var. macrogemma, Salix rigida ssp. mackenzieana, Salix rigida var. mackenzieana, Salix rigida var. macrogemma
USDA Symbol: SAPR3
USDA Native Status: L48 (N), AK (N), CAN (N)
Shrub or small tree with slender trunk, upright branches, and narrow crown.
This species was first found along the Mackenzie River, which was discovered by Alexander Mackenzie (1755?-1820), the Scottish fur trader and explorer.
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Plant Characteristics
Duration: PerennialHabit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 15 feet tall.
Bloom Information
Bloom Color: Yellow , Green , PurpleBloom Time: Feb , Mar , Apr , May , Jun
Distribution
USA: AK , CA , ID , MT , NV , OR , UT , WA , WYCanada: AB , BC , SK
Native Distribution: S. Mackenzie and SE. Yukon south in mountains to Sierra Nevada of central California and N. Utah; from near sea level in north; to 7000' (2134 m) in south.
Native Habitat: Wet soils of stream borders and swamps; in coniferous forests.
Value to Beneficial Insects
Special Value to Native BeesSpecial Value to Bumble Bees
Special Value to Honey Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
National Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | FACW | OBL | FACW | OBL |
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Salix prolixa in USDA PlantsFNA: Find Salix prolixa in the Flora of North America (if available)
Google: Search Google for Salix prolixa
Metadata
Record Modified: 2023-05-16Research By: TWC Staff