| Astragalus preussii | |
|---|---|
| |
| Conservation status | |
 Apparently Secure (NatureServe) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Astragalus |
| Species: | A. preussii |
| Binomial name | |
| Astragalus preussii A.Gray | |
Astragalus preussii (common name - Preuss’ milkvetch) is an annual or perennial plant in the legume family (Fabaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States.
Description
Growth pattern
It is an annual or perennial plant from 4 to 15 inches (10 to 38 cm) tall, growing upright from a woody base.
Leaves and stems
It has compound pinnate leaves from 1+1⁄2 to 15 inches (3.8 to 38.1 cm) long, with 7-25 3⁄4 inch (1.9 cm), elliptic leaflets.
Inflorescence and fruit
It blooms from March to June. The inflorescence has 3-22 flowers per stalk, with a small, green, 5-lobed calyx around a tubular set of white to pink to purple petals, 3⁄4 inch (1.9 cm) long. When dried, 3⁄4 inch (1.9 cm) seed pods are papery or leathery, elliptical, and are either smooth or covered with soft hairs.
Habitat and range
It only grows in soils containing Selenium.
Ecological and human interactions
It is named after Charles Preuss.
References
- NatureServe (2024). "Astragalus preussii". Arlington, Virginia. Retrieved 27 April 2024.
- ^ Canyon Country Wildflowers, Damian Fagan, 2nd ed., 2012, Morris Bush Publishing, LLC. in cooperation with Canyonlands Natural History Association, ISBN 978-0-7627-7013-7
| Taxon identifiers | |
|---|---|
| Astragalus preussii |
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