Astragalus nuttallianus var. austrinus
(Smallflowered Milkvetch)
Astragalus nuttallianus var. austrinus, Enchanted Rock Natural Area, Llano Co. 5281
Astragalus nuttallianus var. austrinus, Terlingua Creek, Brewster Co. 5664
Astragalus nuttallianus var. austrinus, Lost Mine Trail, Big Bend National Park 4888
Astragalus nuttallianus var. austrinus, Lost Mine Trail, Big Bend National Park 4909
Astragalus nuttallianus var. austrinus, Lost Mine Trail, Big Bend National Park 4882
Astragalus nuttallianus var. austrinus, Enchanted Rock Natural Area, Llano Co. 5286
Astragalus nuttallianus var. austrinus, Terlingua Creek, Brewster Co. 5669
| Scientific Name | Astragalus nuttallianus var. austrinus | USDA PLANTS Symbol | ASNUA |
| Common Name | Smallflowered Milkvetch, Rio Fronteras Milkvetch | ITIS Taxonomic Serial No. | 192665 |
| Family | Fabaceae (Pea) | SEINet Reference |
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| Description | Habitat: Sandy or gravelly soils on slopes, streambeds, washes; western 2/3 of Texas, east to North Central Texas and south to Rio Grande. Plant: Low-growing, creeping annual 1 to 2 inches tall; hairy green stems, becoming reddish, 4 to 20 inches long. Leaves: Pinnately-compound leaves 1 to 2 inches long overall, each with 5 to 17 small, hairy, elliptical or oblong leaflets less than 1/2-inch long, tips pointer or rounded, not notched. Inflorescence: A few typical but tiny pea-like blossoms in a short terminal raceme, each less than 1/4-inch across; petals blue-to-purple with white center. Bloom Period: February to May. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of the Texas Hill Country" by Marshall Enquist, American Southwest. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024