Delphinium nuttallii subsp. nuttallii(synonym of Delphinium oreganum) |
Delphinium sect. Diedropetala |
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Willamette Valley larkspur |
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Roots | 2-80 cm, tuberlike or fibrous, dry or fleshy; buds often less than 3 mm. |
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Stems | 40-70 cm. |
1-8(-19) per root; base firmly attached to root or not. |
Leaves | cauline and/or in basal rosette, gradually or abruptly reduced into bracts. |
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Flowers | sepals blue or bluish purple, spurs 10-13 mm; lower petal blades 4.5-6.5 mm. |
sepals blue, purple, white, red, or yellow; lower petal blades often same color as lateral sepals, usually greater than 1/5 length of lateral sepals (exceptions in red- and yellow-flowered species). |
2n | = 16. |
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Delphinium nuttallii subsp. nuttallii |
Delphinium sect. Diedropetala |
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Phenology | Flowering late spring–early summer. | |
Habitat | Rock outcrops, rocky meadows | |
Elevation | 20-300 m (100-1000 ft) | |
Distribution |
OR; WA |
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Source | FNA vol. 3. | FNA vol. 3, p. 197. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa > Delphinium nuttallii | Ranunculaceae > Delphinium |
Sibling taxa | ||
Subordinate taxa | ||
Name authority | unknown | Huth: Bot. Jahrb. Syst. 20: 420. (1895) |
Web links |