Isocoma rusbyi Greene  
Family: Asteraceae
Rusby's goldenbush, more...Rusby's Jimmyweed
[Haplopappus rusbyi (Greene) Cronq.]
Isocoma rusbyi image
Max Licher
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Guy L. Nesom in Flora of North America (vol. 20)
Herbage glabrous, not resinous. Leaf blades narrowly elliptic-oblong to elliptic-obovate, 20-50 mm, margins entire. Involucres (5.5-)6-9.5 × 5-7.5 mm. Phyllary apices yellowish to greenish yellow, not aristate, sparsely or not at all gland-dotted, without resin pockets. Florets 19-25; corollas 5-6.5 mm. Cypsela ribs slightly surpassing apices, forming hornlike extensions. 2n = 12. Flowering Aug-Oct(-Nov). Rocky or sandy soils, sometimes in clay, usually saline, desert shrub communities, sometimes with scattered junipers; 700-1500 m; Ariz., Colo, N.Mex., Utah.
Isocoma rusbyi
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Isocoma rusbyi image
Max Licher
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Max Licher
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Max Licher
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Max Licher
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Max Licher
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Max Licher
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Max Licher
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