Delphinium parishii |
Delphinium trolliifolium |
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desert larkspur, Parish's larkspur |
Columbian larkspur, cow-poison, poison delphinium, poison larkspur |
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Stems | (17-)30-60(-100) cm; base reddish or not, glabrous to puberulent. |
(40-)60-120(-180) cm; base usually reddish, 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). |
blade ± pentagonal, 4-8 × 7-16 cm, margins ± incised, nearly glabrous; ultimate lobes 0-9, width 15-30 mm (basal), 5-20 mm (cauline), widest at middle or in proximal 1/2. |
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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. |
(5-)14-40(-75)-flowered, ± open, at least 2 times longer than wide; pedicel 1-4(-9) cm, puberulent to glabrous; bracteoles (2-)6-12 mm from flowers, green, linear, 5-9(-14) mm, puberulent. |
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Flowers | 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. |
sepals dark blue, glabrous, lateral sepals spreading, (8-)14-21 × 5-9 mm, spurs straight or downcurved at apex, within 20° of horizontal, (10-)16-23 mm; lower petal blades covering stamens, 5-10 mm, clefts 1.5-3 mm; hairs sparse, mostly near junction of blade and claw, centered or on inner lobes, well dispersed, yellow. |
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Fruits | 9-21 mm, 2-4 times longer than wide, glabrous to puberulent. |
(15-)23-34 mm, 3.8-5.5 times longer than wide, glabrous. |
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Seeds | seed coat cells ± brick-shaped, cell margins undulate, surfaces roughened. |
unwinged; seed coats smooth. |
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2n | = 16. |
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Delphinium parishii |
Delphinium trolliifolium |
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Phenology | Flowering spring. | |||||||||
Habitat | Oak woods, coastal chaparral, wet woodlands | |||||||||
Elevation | 30-1100 m (100-3600 ft) | |||||||||
Distribution |
AZ; CA; NV; UT; nw Mexico
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CA; OR
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Discussion | Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Delphinium trolliifolium occurs in the northern Coast Range of California, the Columbia River Valley to just east of Mt. Hood, and the Willamette Valley of Oregon upstream to Lane County. California plants differ somewhat from Oregon plants in pubescence patterns and habitat preferences. Further study may show that two entities are involved here. Hybrids between Delphinium trolliifolium and D. decorum, D. menziesii subsp. pallidum (D. ×pavonaceum Ewan, Peacock larkspur), D. nudicaule, D. nuttallianum, and D. nuttallii are known. Delphinium trolliifolium is likely to be confused only with D. bakeri. Refer to discussion under that species for differences. (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. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Name authority | A. Gray: Bot. Gaz. 12: 53. (1887) | A. Gray: Proc. Amer. Acad. Arts 8: 375. (1872) | ||||||||
Web links |