Delphinium geraniifolium |
Delphinium variegatum |
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Clark Valley larkspur, Mogollon larkspur |
royal larkspur |
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Stems | 60-100 cm; base reddish, puberulent, midstems pubescent. |
(10-)20-50(-80) cm; base reddish or not, not longitudinally ridged, long-pubescent. |
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Leaves | blade dark green, at least adaxially, fan-shaped to reniform, 2-5 × 3-7 cm, pubescent, especially abaxially; ultimate lobes 5-15, width 4-15 mm (basal lobes 5-15 mm), apex abruptly tapered, usually mucronate; veins prominent. |
blade round to pentagonal, 1-4.5 × 2-6 cm, pubescent; ultimate lobes 3-15, width 3-8 mm (basal), 2-5 mm (cauline). |
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Inflorescences | 20-90-flowered, dense, cylindric; pedicel ascending to spreading, 1-2 cm, puberulent; bracteoles 1-2 mm from flowers, green, linear, 4-6 mm, puberulent. |
(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. |
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Flowers | sepals dark blue to purple, puberulent, lateral sepals spreading to slightly forward pointing, 10-14 × 3-5 mm, spurs ascending 20-70°, truncate or downcurved apically, 12-15 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 0.5-2 mm; hairs sparse, local below junction of blade and claw, scattered on margins, white. |
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. |
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Fruits | 13-18 mm, 3-3.5 times longer than wide, puberulent. |
9-19 mm, 2.2-3.8 times longer than wide, ± puberulent. |
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Seeds | unwinged; seed coat cells with margins straight, surfaces ± roughened. |
not echinate, appearing ± smooth to naked eye; seed coat cells with margins ± undulate, surfaces roughened. |
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2n | = 16. |
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Delphinium geraniifolium |
Delphinium variegatum |
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Phenology | Flowering summer. | |||||||||
Habitat | Heavy clay soil, dry meadows in coniferous woods | |||||||||
Elevation | 1800-3400 m (5900-11200 ft) | |||||||||
Distribution |
AZ; NM
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CA
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Discussion | Delphinium geraniifolium is a more pubescent analog of the closely related D. scopulorum, the former occurring in heavier soils at higher elvation. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). (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. Wislizenana | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | D. tenuisectum subsp. amplibracteatum | |||||||||
Name authority | Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) | Torrey & A. Gray: Fl. N. Amer. 1: 32. 183: not D. variegatum Baillon 1883 | ||||||||
Web links |