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Astragalus draft key

I figured I'd share what I've been working on. This is just a draft, but should help with the Astragalus IDs. This includes only the Texas material and will likely need a couple of New Mexico species added before this is complete. Also, I have not included the key to varieties of A. mollissimus yet. Distributions are based on Turner et al. 2003 (Atlas of the Vascular Plants of Texas).

Robust white-flowered species
1. Plants glabrous or nearly so............A. praelongus
1. Plants hairy..........................................2
2. Hairs on calyces appressed, not bluish; pedicels attached at the middle of flat, proximal part of calyx; leaves green; adaxial side of leaves glabrous or nearly so......A. racemosus
2. Hairs on calyces not appressed, bluish; pedicels attached at the base of flat, proximal part of calyx; leaves silvery; adaxial side of leaves hairy......................S. nuttalliana

Prostrate perennial species
...more ↓

Posted on January 13, 2020 17:12 by nathantaylor nathantaylor | 9 comments | Leave a comment
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The Llano Estacado encompasses flatlands, playas, and canyons. The climate is harsh and variable, water scarce, the soil compact. These adverse conditions engender deep respect for the living things that survive and often thrive here.
This project is intended as a forum to share observations and discoveries about the diverse plantlife of these parts. Hopefully it will inspire others to ...more ↓

Mini ellen5 created this project on October 14, 2015

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