Delphinium nuttallii subsp. ochroleucum(synonym of Delphinium leucophaeum) |
Delphinium parishii |
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pale larkspur, white rock larkspur |
desert larkspur, Parish's larkspur |
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Stems | 30-60 cm. |
(17-)30-60(-100) cm; base reddish or not, glabrous to puberulent. |
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Leaves | blade pentagonal, 0.7-5 × 1-8 cm, glabrous to puberulent; ultimate lobes 3-18, width 2-18 mm (basal), 0.5-8 mm (cauline). |
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Inflorescences | (6-)10-40(-74)-flowered, cylindric; pedicel ascending-spreading, (0.3-)1-2.5(-4.8) cm, glabrous to puberulent; bracteoles 2-5(-10) mm from flowers, green, lance-linear, 2-6(-16) mm, glabrous to puberulent. |
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Flowers | sepals white or light yellow, spurs 9-11 mm; lower petal blades 4-6 mm. |
sepals dark blue to white to pink, often puberulent, lateral sepals reflexed or spreading, (7-)9-13 × 2-7 mm, spurs ± decurved, ascending 20-45° above horizontal, 7-15 mm; lower petal blades ± elevated, exposing stamens, blue or white to pink (concolorous with sepals), 3-6 mm, clefts 1-3 mm; hairs mostly near base of cleft, centered or on inner lobes, white. |
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Fruits | 9-21 mm, 2-4 times longer than wide, glabrous to puberulent. |
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Seeds | seed coat cells ± brick-shaped, cell margins undulate, surfaces roughened. |
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2n | = 16. |
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Delphinium nuttallii subsp. ochroleucum |
Delphinium parishii |
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Phenology | Flowering late spring. | |||||||||
Habitat | Rock outcrops, rocky meadows | |||||||||
Elevation | 50-100 m (200-300 ft) | |||||||||
Distribution |
OR
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AZ; CA; NV; UT; nw Mexico
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Discussion | Of conservation concern. The range of morphologic features of Delphinium nuttallii subsp. ochroleucum (D. leucophaeum) is almost completely encompassed within that of D. nuttallii subsp. nuttallii. Sepal color is the only feature consistently separating the two subspecies. Were it not for the fact that any given population typically has plants of only one flower color, a rank of forma would be more appropriate. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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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. Subscaposa | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | D. menziesii var. (ß) ochroleucum, D. leucophaeum | |||||||||
Name authority | (Nuttall) M. J. Warnock: Phytologia 78: 98. (1995) | A. Gray: Bot. Gaz. 12: 53. (1887) | ||||||||
Web links |