Astragalus miser explained

Astragalus miser, the timber milkvetch, is a species of flowering plant in the family Fabaceae.^[1] A perennial, it is native to western North America, except California.^[2] One of the locoweeds toxic to livestock, it contains miserotoxin.^[3]

Subtaxa

The following varieties are accepted:

• Astragalus miser var. crispatus – Idaho, Montana
• Astragalus miser var. decumbens – Montana, Wyoming
• Astragalus miser var. hylophilus – Idaho, Montana, Wyoming, South Dakota
• Astragalus miser var. miser – British Columbia, Washington, Oregon, Idaho, Montana
• Astragalus miser var. oblongifolius – Idaho, Nevada, Utah, Arizona, Wyoming, Colorado, New Mexico
• Astragalus miser var. praeteritus – Idaho, Montana, Wyoming
• Astragalus miser var. serotinus – Washington, Oregon, Idaho, Montana
• Astragalus miser var. tenuifolius – Idaho, Nevada, Utah, Wyoming

Notes and References

1. Web site: Astragalus miser Douglas ex Hook. . Marcus . Joseph A. . 27 June 2023 . Plant Database . Lady Bird Johnson Wildflower Center . 8 November 2023 .
2. 478687-1 . Astragalus miser Douglas ex Hook. . 8 November 2023 .
3. Miserotoxin, new naturally occurring nitro compound . 1969 . Stermitz . Frank R. . Norris . Frank A. . Williams . Miles Coburn . Journal of the American Chemical Society . 91 . 16 . 4599–4600 . 10.1021/ja01044a078 .