Delphinium variegatum |
Delphinium hesperium |
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royal larkspur |
foothill larkspur, western larkspur |
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Stems | (10-)20-50(-80) cm; base reddish or not, not longitudinally ridged, long-pubescent. |
(11-)40-80(-120) cm; base usually reddish, longitudinally ridged, puberulent. |
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Leaves | blade round to pentagonal, 1-4.5 × 2-6 cm, pubescent; ultimate lobes 3-15, width 3-8 mm (basal), 2-5 mm (cauline). |
blade round to pentagonal, 1-4 × 2-6 cm, usually puberulent, especially abaxially; ultimate lobes 3-14, width 3-8 mm (basal), 2-5 mm (cauline). |
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Inflorescences | (4-)6-17(-20)-flowered, open; pedicel 0.5-3(-7) cm, usually puberulent; bracteoles 2-7(-23) mm from flowers, green, linear-lanceolate, 3-8 mm, puberulent. |
(5-)15-30(-100)-flowered, moderately open; pedicel (0.5-)1-2.5(-7.5) cm, puberulent; bracteoles 2-6(-12) mm from flowers, green to blue, margins often white, linear-lanceolate, 3-7(-12) mm, puberulent. |
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Flowers | sepals usually deep royal blue, sometimes bright blue to light blue or white, ± finely pubescent, lateral sepals spreading, 10-18(-25) × 6-10 mm, spurs straight, ascending ca. 30° above horizontal, 10-19 mm; lower petal blades slightly elevated, ± exposing stamens, 4-11 mm, clefts 0.5-3.5 mm; hairs sparse, more on inner lobes than outer lobe or centered, scattered on margins, white or yellow. |
sepals dark blue to white, puberulent, lateral sepals spreading, 7-13(-16) × 3-10 mm, spurs straight to upcurved, ascending 30-45° above horizontal, 9-18 mm; lower petal blades slightly elevated, ± exposing stamens, 3-8 mm, clefts 1-5 mm; hairs centered, denser on inner lobes near base of cleft, white. |
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Fruits | 9-19 mm, 2.2-3.8 times longer than wide, ± puberulent. |
8-18 mm, 2.2-3(-4.2) times longer than wide, sparse puberulent. |
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Seeds | not echinate, appearing ± smooth to naked eye; seed coat cells with margins ± undulate, surfaces roughened. |
not echinate, appearing ± smooth to naked eye; seed coat cells with margins straight, surfaces smooth or roughened. |
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Delphinium variegatum |
Delphinium hesperium |
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Distribution |
CA
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CA
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Discussion | Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). Delphinium hesperium is thought to be poisonous to cattle (D. E. Moerman 1986, no subspecies specified). It is often confused with D. hansenii. See discussion under that species for distinguishing features. (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. Echinata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata | ||||||||||||||||
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Subordinate taxa | ||||||||||||||||||
Name authority | Torrey & A. Gray: Fl. N. Amer. 1: 32. 183: not D. variegatum Baillon 1883 | A. Gray: Bot. Gaz. 12: 53. (1887) | ||||||||||||||||
Web links |