Delphinium nuttallii subsp. nuttallii(synonym of Delphinium oreganum) |
Delphinium barbeyi |
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Willamette Valley larkspur |
Barbey larkspur, Barbey's larkspur, subalpine larkspur, tall larkspur |
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Stems | 40-70 cm. |
50-150 cm; base green, glabrous. |
Leaves | blade round to reniform, 4-8 × 7-15 cm, glabrous; ultimate lobes 5-9, width 8-50 mm. |
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Inflorescences | 10-50-flowered; pedicel 0.5-6 cm, glandular-puberulent; bracteoles 1-4(-8) mm from flowers, blue to green, awl-shaped, 5-14 mm, puberulent. |
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Flowers | sepals blue or bluish purple, spurs 10-13 mm; lower petal blades 4.5-6.5 mm. |
sepals dark bluish purple, sparsely puberulent, lateral sepals forward pointing, 13-23 × 5-8 mm, spurs ascending ca. 45°, downcurved apically, 10-18 mm; lower petal blades ± covering stamens, 4-7 mm, clefts 2-3 mm; hairs centered, mostly near base of cleft, sparse elsewhere, white or yellow. |
Fruits | 17-22 mm, 2.5-3 times longer than wide, puberulent. |
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Seeds | wing-margined; seed coat cells narrow but short, surfaces pustulate. |
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2n | = 16. |
= 16. |
Delphinium nuttallii subsp. nuttallii |
Delphinium barbeyi |
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Phenology | Flowering late spring–early summer. | Flowering summer. |
Habitat | Rock outcrops, rocky meadows | Subalpine and alpine sites in wet soils |
Elevation | 20-300 m (100-1000 ft) | 2500-4100 m (8200-13500 ft) |
Distribution |
OR; WA |
AZ; CO; NM; UT; WY
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Discussion | Delphinium barbeyi hybridizes extensively with D. glaucum in western Colorado and eastern Utah, where plants appearing to be hybrid [D. ×occidentale (S. Watson) S. Watson] are often far more common than plants of either putative parent. Several other names have been used for these plants, including D. elatum var. occidentale S. Watson, D. abietorum Tidestrom, and D. scopulorum subsp. occidentale (S. Watson) Abrams. Delphinium barbeyi is also known to hybridize with D. ramosum and D. sapellonis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa > Delphinium nuttallii | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata |
Sibling taxa | ||
Synonyms | D. exaltatum var. (e) barbeyi, D. occidentale var. barbeyi | |
Name authority | unknown | (Huth) Huth: Bull. Herb. Boissier 1: 335. (1893) |
Web links |