sonnia hill: Abutilon fruticosum - habit
sonnia hill: Acalypha monostachya
sonnia hill: Acleisanthes longiflora
sonnia hill: Acleisanthes longiflora
sonnia hill: Agave lechuguilla
sonnia hill: Agave lechuguilla
sonnia hill: Allionia incarnata
sonnia hill: Amsonia longiflora
sonnia hill: Amsonia longiflora
sonnia hill: Argemone chisosensis
sonnia hill: Argemone chisosensis
sonnia hill: Argemone chisosensis
sonnia hill: Ariocarpus fissuratus var. fissuratus
sonnia hill: Astragalus mollissimus
sonnia hill: Astragalus mollissimus
sonnia hill: Astragalus mollissimus - flower and fruit (legume)
sonnia hill: Astragalus nuttallianus var. austrinus - fruit (legume)
sonnia hill: Astragalus nuttallianus var. austrinus - habit
sonnia hill: Atriplex acanthocarpa - staminate plant
sonnia hill: Atriplex canescens - staminate plant
sonnia hill: Bahia absinthifolia
sonnia hill: Bahia absinthifolia
sonnia hill: Baileya multiradiata
sonnia hill: Baileya multiradiata, Lupinus havardii
sonnia hill: Alloberberis trifoliolata (syn: Berberis trifoliolata, Mahonia trifoliolata)
sonnia hill: Berlandiera lyrata var. purpurea (disc florets purple)
sonnia hill: Big Bend National Park
sonnia hill: Vachellia farnesiana (syn: Acacia farnesiana)
sonnia hill: Big Bend National Park vista
sonnia hill: Buddleja marrubiifolia