Hymenothrix wislizeni
Yellow Thimblehead, Trans-Pecos Thimblehead
Oʼodham[unknown]
Description
Hymenothrix wislizeni grows in sandy soils, in open areas and along roadways between 2500 and 5500 feet elevation. This species evades drought by persisting only as a thick root most of the year. After the first soaking Monsoon rains, a shoot erupts and rapidly grows into a stem 2 to 3 feet tall. The stems are relatively naked and branched at the top. The leaves are finely dissected and dull green in color. Flowering occurs from mid August to mid October.
