Thelypodium laxiflorum, the droopflower thelypody, is a plant species native to the southwestern United States. It grows in open, rocky places on slopes and cliff faces, usually in pinyon-juniper woodlands at elevations of . It has been reported from Utah, western Colorado, southern Nevada, northwestern Arizona, and northwestern New Mexico.Flora of North America v 7 p 735.BONAP (Biota of North America Project) floristic synthesis, Thelypodium laxiflorum
Thelypodium laxiflorum is a glabrous perennial. Stems are up to tall, branching well above ground. It has both basal and cauline (stem) leaves. Flowers are white, rarely lavender, born in cymes. Fruits are long and narrow, visibly constricted between the seeds.Al-Shehbaz, Ihsan Ali. 1973. Contributions from the Gray Herbarium of Harvard University 204: 129–132, pl. 22(A).photo of isotype of Thelypodium laxiflorum at Missouri Botanical GardenPayson, Edwin Blake. 1923. Annals of the Missouri Botanical Garden 9(3): 317.Jones, Marcus Eugene. 1895. Proceedings of the California Academy of Sciences, Series 2, 5(18): 622–623Holmgren, N. H., P. K. Holmgren & A.J. Cronquist. 2005. Vascular plants of the intermountain west, U.S.A., subclass Dilleniidae. 2(B): 1–488. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.
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