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On the Biosphere 2 road off of HW 77, Arizona, July 31, 2011
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August 2011 On the Biosphere 2 road off of HW 77, Arizona, July 31, 2011
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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low roadcut in gray tuffaceous rhyolite along grassy highway right-of-way
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along grassy road right-of-way crossing open basin grassland with scattered trees on low knoll of gravelly volcanic alluvial soil.
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along grassy road right-of-way crossing open basin grassland with scattered trees on low knoll of gravelly volcanic alluvial soil.
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photo ca. 1/2 hr after sunset
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photo ca. 1/2 hr after sunset
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Plants scattered on open degraded grassland, gravelly volcanic soils over basalt substrate. Leaf view. Note small, coarse, barbed hairs which provide the tightly clinging 'velcro' or 'stick tight' effect the foliage of this and other members of the genus display when brushed against clothing or hair.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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in gravels at base of road cut in platy bedded, shaley Cretaceous limestone. Photo taken just after dawn.
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2000 California Academy of Sciences
CalPhotos
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