Journal archives for November 2019

November 23, 2019

How to know the Texas Arabideae (Genera Draba, Abdra, and Tomostima)

Species of the Tribe Arabideae are among the first flowers to bloom (January--March or early April). Being small and inconspicuous, they are often overlooked (especially Draba reptans). Observations of Texas Arabideae are here. These species have been lumped and split, taxonomically; recently, all were in the genus Draba. The following characteristics vary, so documenting multiple characteristics will confirm the ID. Features to capture include:

  • side view of mature fruits (pods)
  • side view of flowering stem (pedicel) from top to bottom (with hairs in focus)
  • view of leaves

Also, young plants may be challenging or impossible to identify.

👉 Key and illustrated identification guide

*There is also a yellow-flowered species in Jeff Davis county (Trans-Pecos): Draba standleyi

Posted on November 23, 2019 03:59 PM by pfau_tarleton pfau_tarleton | 8 comments | Leave a comment