Astragalus preussii
# Astragalus preussii

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 $States.^{:121}$

## 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 $base.^{:121}$

### 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 $leaflets.^{:121}$

### Inflorescence and fruit

It blooms from March to $June.^{:121}$ 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) $long.^{:121}$ When dried, 3⁄4 inch (1.9 cm) seed pods are papery or leathery, elliptical, and are either smooth or covered with soft $hairs.^{:121}$

## Habitat and range

It only grows in soils containing $Selenium.^{:121}$

## Ecological and human interactions

It is named after Charles $Preuss.^{:121}$

