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Elevation 9,000 ft.
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plants on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Randia thurberi, Melochia speciosa, Colubrina viridis, Randia thurberi.
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'heads discoid, few; involucre 1117.5 mm, cylindric; phyllaries graduated, oblong to ovate, firm, not keeled, tips irregularly toothed or notched, abruptly pointed; receptacle flat, finely pitted, epaleate. Flower: 47; corolla 9.511.5 mm, yellow; anther tip narrowly triangular; style tips linear, appendage > stigmatic portion. Fruit: 79 mm, glabrous; pappus = corolla. 'TJM2
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Senecio douglasii
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Elevation 9,000 ft.
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plants on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Randia thurberi, Melochia speciosa, Colubrina viridis, Randia thurberi.
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Elevation 9,000 ft.
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plants on coarse gravelly volcanic soil of large, wide, braided sheet-wash arroyo draining coastal plain between rhyolite hills, with Diphysa occidentalis, Caesalpinia palmeri, Acacia willardiana, Randia thurberi, Melochia speciosa, Colubrina viridis, Randia thurberi.
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attempting to show 'ribbed' phyllaries
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Elevation 9,000 ft.
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Bebbia juncea
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Elevation 9,000 ft.