According to observations of naturalists and beekeepers.
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Astragalus is a large genus of over 3,000 species of herbs and small shrubs, belonging to the legume family Fabaceae and the subfamily Faboideae. It is the largest genus of plants in terms of described species. The genus is native to temperate regions of the Northern Hemisphere. Common names include milkvetch (most species), locoweed (in North America, some species), and goat's-thorn (A. gummifer, A. tragacantha).
This plant is present in at least 63 states/provinces in this country.
Milkvetch species include herbs and shrubs with pinnately compound leaves. There are annual and perennial species. The flowers are formed in clusters in a raceme, each flower typical of the legume family, with three types of petals: banner, wings, and keel. The calyx is tubular or bell-shaped.
Some species of Astragalus are useful honey plants, whereas other species are poisonous to bees and livestock.
Salix arbusculoides (aka: Littletree willow)
Salix bebbiana (aka: Bebb willow, Beak willow, Beaked willow, Long-beaked willow, Diamond willow, Chaton, Petit Minou, Smooth Bebb willow)
Salix planifolia (aka: Diamondleaf willow, Planeleaf willow)
Salix pulchra (aka: Tealeaf willow, Flatleaf willow, Flat-leaved willow, Paneleaf willow, Thin red willow)
Astragalus (aka: Milkvetch, Locoweed, Goat's-thorn)
Salix alaxensis (aka: Feltleaf willow, Alaska willow)
Salix richardsonii (aka: Richardson's willow, Woolly willow)
Salix myrtillifolia (aka: Blueberry willow, Low blueberry willow, Tall blueberry willow)
Salix fuscescens (aka: Alaska bog willow)
Salix glauca (aka: Grayleaf willow, Gray willow, Gray-leaved willow)
Rubus idaeus (aka: Raspberry, Black-haired red raspberry, Brilliant red raspberry, American red raspberry, Red raspberry, Smoothleaf red raspberry, Wild raspberry, Wild red raspberry, Grayleaf raspberry)
Chamaenerion angustifolium (aka: Fireweed, Great willowherb, Rosebay willowherb, Saint Anthony's Laurel, French-willow)