Pollen Type: Weed
Cross-Reactivity: Bassia, Lenscale, Iodine Bush, Annual Saltbush, All Scale, Bract Scale, Brewer’s Scale, Lens Scale, Red Scale, Silver Scale, Spear Scale, Sugar Beet, Winter Fat
HS Allergy Extract: Scale, Wing
Genus/Species: Atriplex canescens
Common Names: Wingscale, Shadscale, Four-winged Saltbrush, Chamiso, Chamiza
Distribution: West Texas to Kansas to Montana and Alberta. Eastern Washington to southern California and Mexico.
Locations: Disturbed sites and desert areas. Often found in areas near sagebrush.
Pollination Method: Wind-pollinated
Pollinating Period: June-Mid-September
Description: Wingscale is a large, woody, densely branched grayish shrub. Its size ranges greatly from 1’-10’, but is most commonly 2’-4’. Its thin leaves are 1/2”-2”. It is a dioecious species, meaning male and female plants grow separately. The staminate glomerules (male flowers) grow in dense terminal spike-like clusters and produce large quantities of pollen. The characteristic four-winged fruits are pale green when immature, becoming tinged with purple and finally turning brown in late fall. Wingscale has a prolonged summer pollinating period throughout its range. However, within a specific area, the pollinating period is usually within a month.