Delphinium bicolor |
Delphinium decorum |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Flathead larkspur, little larkspur, low larkspur, Montana larkspur |
coast larkspur, coastal larkspur, larkspur, low larkspur, yellowtinge larkspur |
|||||||||
Stems | 10-40(-70) cm; base often reddish, glabrous to puberulent. |
5-25(-42) cm; base reddish or not, at least two proximal internodes long-pubescent. |
||||||||
Leaves | blade round, 1-4 × 1.5-7 cm, glabrous to puberulent; ultimate lobes 3-19, width 1-8 mm (basal), 1-3 mm (cauline). |
blade deltate to pentagonal, 1-2.5 × 1.5-4.5 cm, ± puberulent; ultimate lobes 3-15, width 3-17 mm (basal), 1-8 mm (cauline), widest at middle or in proximal 1/2. |
||||||||
Inflorescences | 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. |
2-10(-20)-flowered; pedicel 1-4(-6) cm, puberulent to glabrous; bracteoles (3-)7-11(-21) mm from flowers, green to blue, linear-lanceolate, 6-9(-12) mm, puberulent. |
||||||||
Flowers | 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. |
sepals bluish purple (somewhat faded on drying), puberulent, lateral sepals spreading, (11-)15-20(-24) × 6-11(-15) mm, spur straight, 0-30° above horizontal, 13-20 mm; lower petal blades ± covering stamens, 6-11 mm, cleft 2-4 mm; hairs on entire surface, densest on inner lobes, yellow or white. |
||||||||
Fruits | (12-)16-22 mm, 4-4.5 times longer than wide, usually puberulent. |
9-20 mm, 3-4.5 times longer than wide, glabrous to puberulent. |
||||||||
Seeds | often winged; seed coat cells with surfaces ± smooth. |
wing-margined; seed coat cells ± aggregate in small wavy ridges, cell surfaces ± roughened, without swollen, blunt hairs. |
||||||||
Delphinium bicolor |
Delphinium decorum |
|||||||||
Distribution |
ID; MT; ND; NE; SD; WY; AB; BC; SK
|
CA
|
||||||||
Discussion | 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.) |
Subspecies 2 (2 in the flora). Delphinium decorum and D. menziesii have been confused. Delphinium menziesii usually has darker, colorfast (nonfading) sepals with less lavender, and a more northern distribution than D. decorum. It also has more finely dissected leaves than D. decorum subsp. decorum. Often confused with Delphinium patens, D. decorum is sometimes circumscribed to include that species. The spreading, fading, blue-purple sepals, pubescent proximal portion of stems, and large lower petal blade of D. decorum, compared to the reflexed, colorfast, bluer sepals, proximally glabrous stems, and smaller lower petal blades of D. patens, adequately distinguish the two taxa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|
||||||||
Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Bicoloria | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Name authority | Nuttall: J. Acad. Nat. Sci. Philadelphia 7: 10. (1834) | Fischer & C. A. Meyer: Ind. Sem. Hort. Petrop. 3: 650. (1837) | ||||||||
Web links |