Plant Image
Flower spike
Middle Verde River - SS


Yavapai County Native & Naturalized Plants

Astragalus calycosus - Torrey's milkvetch

Plant Form: Forb

Family: Fabaceae


   
 
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Flower
Middle Verde River
SS
Leaves
Middle Verde River
SS
Leaves
Middle Verde River
SS
Plant - spring
Middle Verde River
SS
Forb Plant Description

Origin: Native   Life Cycle: Perennial   Similar Species: Astragalus spp.
General Desc: A low, stemless perennial with silvery green leaves.
Identification notes: Banner wings (upper petals) deeply notched at the apex. Hairs are attached at their middle, pods are 2-celled and distinguish this species from other Astragalus spp.
Height: 6-8 inches


Habitat

Habitat Description: Rocky slopes, mesas, pinyon-juniper forests.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Riparian, Disturbed Areas
Elevation: 3000 - 8000 feet


Flower Characteristics

Color: Purple, pinkish.     Shape: Irregular in elongated clusters     Tubular: N     Flowering Period: Apr - Jul
Description: Pea-like flowers, petals whitish, often purple-tipped or pink-tipped, fading to blue..


Leaf and Stem Characteristics

Leaf Color: Grayish-green     Leaf Type: Compound     Leaf Shape: Other     Leaf Margin: Smooth     Leaf Attachment: Opposite     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Leaflets 3 to 7, about 1/4 inch long, oblanceolate to obovate (narrow to or egg-shaped, broadest toward the end).


Fruit and Seed Characteristics

Fruit Type: Pod


  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
http://prescottnatives.com/SpeciesDetailForb.php  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
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