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Cabeza Prieta Natural History Association
Sonoran Desert Plants
Astragalus nuttallianus var. imperfectus (Small-flowered milkvetch)

 Cabeza Prieta Peak

 

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Astragalus nuttallianus var. imperfectus

Astragalus nuttallianus var. imperfectus

Astragalus nuttallianus var. imperfectus

Astragalus nuttallianus var. imperfectus

Habitat: valleys, bajadas
Life Form: annual forb
Leaf Description: alternate pinnate leaves
Flower Color: blue,indigo
Flowering Period: Feb. to May
Spines: spineless
Family: Fabaceae (bean family), Papilionoideae subfamily
Abundance: common

 

References

"Arizona Flora", Thomas A. Kearney and Robert H. Peebles, 1960, University of California Press, Berkeley, Los Angeles, London (out of print)
    page 468

"Flora of the Gran Desierto and Rio Colorado of Northwest Mexico (Southwest Center Series)", Richard Felger, 2001. University of Arizona Press, Tucson
    page 301

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Natural History of the Sonoran Desert and Refuge

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