Rudbeckia glaucescens |
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waxy coneflower |
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Habit | Plants 5–15 dm. |
Stems | glabrous nearly throughout, sometimes pilose or scabrous beneath heads. |
Basal leaves | lanceolate to elliptic, 20–50 × 4–10 cm, bases attenuate; margins entire to sparsely serrate; tips acute; surfaces glaucous. |
Cauline leaves | similar to basal, 10–25 × 2–8 cm. |
Receptacles | conic or columnar, 25–40 × 15–20 mm. |
Ray florets | 7–15; rays 25–40 mm. |
Disc florets | 250–400; corollas 3–4 mm; yellowish green. |
Phyllaries | 5–20 mm; surfaces glabrous. |
Fruits | 3.5–5 mm; black; pappi partly fused, scaly crowns. |
Heads | radiate; solitary or 2–10 in corymb-like arrays. |
2n | =36. |
Rudbeckia glaucescens |
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Distribution | |
Discussion | Seeps, bogs, marshes, serpentine. Flowering Jun–Sep. 100–1400 m. CR, Sisk. CA. Native. |
Source | Flora of Oregon, volume 2, page 335 Kenton Chambers |
Sibling taxa | |
Synonyms | Rudbeckia californica, Rudbeckia californica var. glauca |
Web links |