Delphinium menziesii |
Delphinium bicolor |
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Menzies' larkspur |
Flathead larkspur, little larkspur, low larkspur, Montana larkspur |
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Stems | (10-)35-70(-85) cm; base often reddish, puberulent. |
10-40(-70) cm; base often reddish, glabrous to puberulent. |
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Leaves | blade round, 1.5-5 × 3-9 cm, puberulent; ultimate lobes 5-18, width 2-15 mm (basal), 1-10 mm (cauline), widest at middle or in proximal 1/2. |
blade round, 1-4 × 1.5-7 cm, glabrous to puberulent; ultimate lobes 3-19, width 1-8 mm (basal), 1-3 mm (cauline). |
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Inflorescences | 3-15(-43)-flowered; pedicel 1.5-4(-7) cm, (glandular) puberulent; bracteoles 8-10(-24) mm from flowers, green to blue, linear, 4-6(-9) mm, puberulent. |
3-12(-22)-flowered; pedicel 1-4(-8) cm, ± puberulent; bracteoles 2-7(-17) mm from flowers, green, sometimes white-margined, lanceolate, 4-6(-8) mm, puberulent. |
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Flowers | sepals bluish purple or yellowish, often partly fading upon drying, puberulent, lateral sepals spreading, (11-)13-20 × 5-11 mm, spurs straight, ascending less than 30° above horizontal, 11-17 mm; lower petal blades ± covering stamens, 8-12 mm, clefts 0.2-2.5 mm; hairs sparse, centered, mostly near junction of blade and claw above base of cleft, white or blue. |
sepals dark blue, puberulent, lateral sepals usually spreading, 16-21 × 6-12 mm, spurs straight to gently decurved, ascending 0-40° above horizontal, 13-23 mm; lower petal blades covering stamens, 7-12 mm, clefts 0.1-3 mm; hairs sparse, short, mostly on inner lobes below junction of blade and claw, white or yellow. |
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Fruits | 11-17 mm, 3.5-4 times longer than wide, puberulent. |
(12-)16-22 mm, 4-4.5 times longer than wide, usually puberulent. |
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Seeds | wing-margined; seed coat cell surfaces smooth, without swollen blunt hair. |
often winged; seed coat cells with surfaces ± smooth. |
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Delphinium menziesii |
Delphinium bicolor |
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Distribution |
OR; WA; BC
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ID; MT; ND; NE; SD; WY; AB; BC; SK
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Discussion | Subspecies 2 (2 in the flora). Although Delphinium menziesii has often been confused with D. nuttallii, it may be distinguished by its consistently larger flowers and usually fewer flowers per plant. Interestingly, each species produces both blue-purple and yellowish flower colors in separate populations. The Chehalis consider Delphinium menziesii poisonous, but they also apply it to sores. The women of the Thompson Indians use it as a love charm (D. E. Moerman 1986, subspecies not indicated). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). Delphinium bicolor is closely related to D. glareosum; it differs in its wider-lobed cauline leaves, shallower petal clefts, and narrower fruits. The Gosiute consider this plant to be poisonous (D. E. Moerman 1986, subspecies not specified). (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 | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Bicoloria | ||||||||
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Subordinate taxa | ||||||||||
Name authority | de Candolle: Syst. Nat. 1: 355. (1817) | Nuttall: J. Acad. Nat. Sci. Philadelphia 7: 10. (1834) | ||||||||
Web links |