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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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on low ridge of mineralized gossen soil altered from tuffaceous rhyolite
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in rhyolitic tuff gravels on steep south facing, mid-canyon slope
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on gravelly volcanic rhyolite tuff substrate in steeply terraced lower part of canyon
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on coarse rhyolitic tuff gravels in side canyon drainage just above the Rio Batopilas
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on coarse rhyolitic tuff gravels in side canyon drainage just above the Rio Batopilas
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on coarse rhyolitic tuff gravels in side canyon drainage just above the Rio Batopilas
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mixed accumulation of volcanic gravels and fine alluvial soils of bluff just above the riverside road
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mixed accumulation of volcanic gravels and fine alluvial soils of roadside bluff just above the Rio Urique
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plants on exposed limestone hillside with Opuntia rufida, Sengalia crassifolia, Sericodes greggii, Agave scabra.
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View of bracteoles. Small twinning vine with thread-like divided leaves on coarse gravelly volcanic(rhyolite) soil of large, wide, braided sheet-wash arroyo.
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Note bee cut access to nectary in flower tube without pollination service. Small twinning vine with thread-like divided leaves on coarse gravelly volcanic(rhyolite) soil of large, wide, braided sheet-wash arroyo.
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Flower bud. Small twinning vine with thread-like divided leaves on coarse gravelly volcanic(rhyolite) soil of large, wide, braided sheet-wash arroyo.
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short clamoring vine growing at base of south face of roadcut in rhyolite ridge
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short clamoring vine growing at base of morth face of roadcut in rhyolite ridge
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short clamoring vine growing at base of south face of roadcut in rhyolite ridge
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short clamoring vine growing at base of south face of roadcut in rhyolite ridge
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