Now showing items 1-2 of 2

    • Lehman, Roy L. (Texas A & M University. Press, 2005)
      Three color photographs of Guajacum angustifolia, (also known as soapbush), an evergreen shrub from the Caltrop family found on sandy or clayey loams and caliche, often on slopes or along bluffs and ravines.
    • Lehman, Roy L. (Texas A & M University. Press, 2005)
      Two color photographs of Tribulus terrestris, (also known as puncture-vine or goathead), an annual flowering plant from the Caltrop family found on various soils, mostly in waste places.