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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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steep middle slope of canyon in volcanic rhyolitic tuff with Hyptis albida, Bursera, Karwinski humboltiana, Ambrosia ambrosioides.
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plant on steep upper slope of barranca in volcanic rhyolitic tuff with Sida rhombifolia, Sida abutifolia, Ambrosia cordifolia, Solanum tridynamum
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plant on steep upper slope of barranca in volcanic rhyolitic tuff with Sida rhombifolia, Sida abutifolia, Ambrosia cordifolia, Solanum tridynamum. View of lower side of leaf.
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plant on steep upper slope of barranca in volcanic rhyolitic tuff with Sida rhombifolia, Sida abutifolia, Ambrosia cordifolia, Solanum tridynamum.
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plant on steep upper slope of barranca in volcanic rhyolitic tuff with Quercus chihuahuensis, Lantana, Zinnia angustifolia, Malvastrum bicuspidatum, Carlowrightia arizonica. View upper side of leaf.
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plant on steep upper slope of barranca in volcanic rhyolitic tuff with Quercus chihuahuensis, Lantana, Zinnia angustifolia, Malvastrum bicuspidatum, Carlowrightia arizonica. View immature fruiting capsule.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora. View of stem hairs.
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plant on steep middle slope of barranca in volcanic rhyolitic tuff with Lantana achyranthifolia, Bonplandia geminiflora, Jacquemontia, Salvia, Euphorbia cyathophora.
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