Rhododendron macrophyllum |
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Pacific rhododendron, western rhododendron |
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Habit | Shrubs or small trees evergreen, to 5 m; bark smooth to furrowed and shredding; occasionally rhizomatous. |
Leaves | elliptic to obovate; (6)8.5–15(20) × 2.5–7.0 cm, abaxially light green to rusty colored, adaxially green; thick; leathery; margins entire; tips acute to obtuse; surfaces abaxially velvety, occasionally with a few scattered hairs, adaxially glabrous, occasionally with a few scattered hairs. |
Inflorescences | terminal, 10–20-flowered; bracts present. |
Pedicels | 30–60 mm, glabrous. |
Flowers | opening after leaves; erect to horizontal; fragrant; sepals 1–1.5 mm, glabrous; margins pubescent; corollas broad, campanulate, 25–50 mm, white to pink or purple, yellow-green spots on upper lobe; outer surfaces glabrous; petals connate; lobes 15–30 mm; stamens 10, included, unequal, 15–35 mm. |
Fruits | 10–25 mm. |
Seeds | without tails. |
2n | =26. |
Rhododendron macrophyllum |
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Distribution | |
Discussion | Low to mid-elevation forests. Flowering Apr–Aug. 0–1900 m. Casc, CR, Est, Sisk, WV. CA, WA; north to British Columbia. Native. Plants of this species are cultivated worldwide for their large showy flowers. |
Source | Flora of Oregon, volume 2, page 637 Stephen Meyers |
Sibling taxa | |
Web links |
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