sonnia hill:
Baptisia sphaerocarpa
sonnia hill:
Baptisia sphaerocarpa - habit
sonnia hill:
Cleomella angustifolia
sonnia hill:
Cleomella angustifolia
sonnia hill:
Cleomella angustifolia - Eastern limit
sonnia hill:
Cleomella angustifolia- Eastern limit
sonnia hill:
Coreopsis tinctoria var. tinctoria
sonnia hill:
Coreopsis tinctoria var. tinctoria
sonnia hill:
Erosion on a slope above the saline area
sonnia hill:
Habitat of saline prairie Opuntia nemoralis
sonnia hill:
Hymenoxys texana
sonnia hill:
Hymenoxys texana
sonnia hill:
Hymenoxys texana and Opuntia nemoralis
sonnia hill:
Islands of Opuntia nemoralis
sonnia hill:
Limnosciadium pinnatum
sonnia hill:
(Salviniaceae) Marsilea vestita
sonnia hill:
Mimosa strigillosa
sonnia hill:
Mimosa strigillosa
sonnia hill:
Mimosa strigillosa
sonnia hill:
Nepunia lutea
sonnia hill:
Oenothera linifolia
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Opuntia nemoralis
sonnia hill:
Phemeranthus parviflorus and Opuntia nemoralis
sonnia hill:
Plantago aristata - fruit with persistent perianth
