Rudbeckia alpicola |
Rudbeckia mohrii |
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Wenatchee Mountains coneflower |
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Habit | Plants 5–15 dm. | |
Stems | glabrous nearly throughout, becoming tomentulose beneath heads. |
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Basal leaves | ovate to elliptic or deltate, 25–70 × 6–40 cm, bases rounded to acute; margins entire to serrate; some or many leaves pinnatifid to pinnate; tips acute. |
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Cauline leaves | similar to basal, 10–50 × 5–35 cm. |
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Receptacles | columnar 30–60 × 15–25 mm. |
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Ray florets | 0. |
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Disc florets | 300–500; corollas 4–6 mm; brownish purple. |
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Phyllaries | 5–60 mm; surfaces puberulent to scabrous or nearly glabrous. |
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Fruits | 3.5–5 mm; black; pappi low, 2–4-toothed crowns. |
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Heads | discoid; solitary or 2–10 in corymb-like arrays. |
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Rudbeckia alpicola |
Rudbeckia mohrii |
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Distribution | ||
Discussion | Montane forests, shrublands, meadows, riverbanks. Flowering Jul–Aug. 1000–2100 m. BW, Lava. CA, WA. Native. This species was cited by Cronquist (1994) as Rudbeckia occidentalis var. montana from the Elkhorn Range, Baker County, widely disjunct from the known range of that taxon in Colorado and Utah. These Oregon collections, and others from Steens Mountain, are here referred to R. alpicola, which according to Urbatsch and Cox (2006) is limited to the Wenatchee Mountains, Washington. However, R. alpicola had previously been reported from the Cascade Range in California as well (Ferris 1960). Additional collections are needed to clarify its distribution in Oregon. |
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Source | Flora of Oregon, volume 2, page 335 Kenton Chambers |
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Sibling taxa | ||
Web links |