Astragalus zionis is a species of legume known by the common name Zion milkvetch. It is one of the earliest flowers to bloom in Zion canyon.[1]
Species of legume
Astragalus zionis
Zion Milkvetch bloom, Zion Canyon
Scientific classification
Kingdom:
Plantae
Clade:
Tracheophytes
Clade:
Angiosperms
Clade:
Eudicots
Clade:
Rosids
Order:
Fabales
Family:
Fabaceae
Subfamily:
Faboideae
Genus:
Astragalus
Species:
A.zionis
Binomial name
Astragalus zionis
M.E.Jones
Its range extends from Zion National Park across southern Utah through Glen Canyon to San Juan County, Utah; at altitudes of 970 to 2200 meters.[2]
Flowers are purple and the foliage is silvery. Pods are rather hairy, somewhat inflated, usually mottled and become nearly one inch long.[1]
Zion Milkvetch bloom, leaves and seed pod, Zion Canyon, April 2016 Astragalus zionis
References
Nelson, Ruth Ashton (1976). Plants of Zion National Park. Springdale, Utah, USA: Zion Natural History Association. pp.152. ISBN0-915630-01-X.
Albee, Beverly J.; Leila M. Sjultz; Sherel Goodrich (1988). Atlas of the Vascular Plants of Utah. Salt Lake City, Utah, USA: The Utah Museum of Natural History. p.293. ISBN0-940378-09-4.
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