Delphinium nuttallii subsp. ochroleucum(synonym of Delphinium leucophaeum) |
Delphinium scaposum |
|
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pale larkspur, white rock larkspur |
bare-stem larkspur, desert larkspur, tall mountain larkspur |
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Stems | 30-60 cm. |
25-50(-65) cm; base usually reddish, glabrous, glaucous. |
Leaves | blade ± round, 0.5-4 × 0.5-6 cm, puberulent to glabrous; ultimate lobes 3-9, width 2-15 mm (basal), 0.5-3 mm (cauline). |
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Inflorescences | 10-25(-40)-flowered, cylindric; pedicel ascending, 0.6-2.5 cm, glabrous; bracteoles 2-5 mm from flowers, green to blue, linear-lanceolate, 2-4 mm, glabrous. |
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Flowers | sepals white or light yellow, spurs 9-11 mm; lower petal blades 4-6 mm. |
sepals bright dark blue, glabrous, lateral sepals spreading, 11-14 × 4-6 mm, spurs straight, sometimes decurved, ascending 30-45° above horizontal, 13-18 mm; lower petal blades elevated, exposing stamens, 5-8 mm, cleft 2-4 mm; hairs mostly centered on inner lobes near junction of blade and claw, white. |
Fruits | 12-16 mm, 2.5-3 times longer than wide, glabrous. |
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Seeds | seed coat cells ± brick-shaped, cell margins straight, surfaces smooth. |
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2n | = 16. |
= 16. |
Delphinium nuttallii subsp. ochroleucum |
Delphinium scaposum |
|
Phenology | Flowering late spring. | Flowering spring. |
Habitat | Rock outcrops, rocky meadows | Juniper woods, grassland |
Elevation | 50-100 m (200-300 ft) | 1200-2700 m (3900-8900 ft) |
Distribution |
OR
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AZ; CO; NM; UT
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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.) |
Delphinium scaposum is reportedly used in Navajo and Hopi religous ceremonies, as well as for a wash following childbirth (D. E. Moerman 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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 | ||
Synonyms | D. menziesii var. (ß) ochroleucum, D. leucophaeum | D. andersonii var. scaposum |
Name authority | (Nuttall) M. J. Warnock: Phytologia 78: 98. (1995) | Greene: Bot. Gaz. 6: 156. 1881, not D. scaposum W. T. Wang (1957) |
Web links |