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9b. Helianthus petiolaris Nuttall subsp. fallax Heiser, Rhodora. 60: 279, fig. 3. 1958.
Stems usually ± hispid , rarely ± hir-sute to glabrate. Leaves: abaxial faces sparsely, if at all, gland-dotted. Peduncles usually with leafy bracts subtending heads. Phyllaries 2–3.5 mm wide. Disc corollas: throats gradually narrowed distal to slight, not densely hairy basal bulges. 2n = 34.
Flowering summer–fall. Dry, open areas; 1200–2500 m; Ariz., Colo., Nev., Utah.
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