Delphinium exaltatum |
Delphinium sutherlandii |
|
---|---|---|
tall larkspur |
Sutherland's larkspur |
|
Stems | 70-200 cm; base reddish, nearly glabrous. |
(15-)30-70 cm; base often reddish, glabrous. |
Leaves | blade pentagonal, 2-7 × 3-9 cm, puberulent; ultimate lobes 3-7, width 5-25 mm; midcauline leaf lobes less than 3 times longer than wide. |
blade round, 1.5-10 × 3-18 cm, nearly glabrous; ultimate lobes 5-21, 5 or more extending more than 3/5 distance to petiole, width 3-9(-15) mm (basal), 0.5-6(-10) mm (cauline), widest at middle or in proximal 1/2. |
Inflorescences | 8-30-flowered; pedicel 0.5-2 cm, puberulent; bracteoles 2-4 mm from flowers, green, linear, 2-4 mm, puberulent. |
(2-)11-26(-37)-flowered, at least 2 times longer than wide; pedicel 1-3 cm, puberulent; bracteoles 2-7 mm from flowers, green to blue, linear-lanceolate, 3-5 mm, puberulent. |
Flowers | sepals whitish to pale lavender or purple, puberulent, lateral sepals forward pointing, 9-11 × 4-6 mm, spurs straight, as much as 45° above or below horizontal, 9-12 mm; lower petal blades ± covering stamens, 3-5 mm, clefts 1-2 mm; hairs centered, mostly near base of cleft, white. |
sepals dark blue, retaining color upon drying, puberulent, lateral sepals spreading, 14-20 × 5-10 mm, spurs gently decurved, ascending 0-20° above horizontal, 14-18 mm; lower petal blades slightly elevated, ± covering stamens, white, yellowish, or tan, 8-12 mm, clefts 2-4 mm; hairs short, sparse, mostly below junction of blade and claw, slightly offset to inner lobes, white. |
Fruits | 7-12 mm, 2-2.5 times longer than wide, ± puberulent. |
(13-)18-25 mm, 4.5-5.2 times longer than wide, puberulent. |
Seeds | ± wing-margined; seed coat cells elongate, surfaces smooth. |
winged on 1 margin; seed coat cell surfaces roughened. |
2n | = 16. |
|
Delphinium exaltatum |
Delphinium sutherlandii |
|
Phenology | Flowering summer. | Flowering spring. |
Habitat | Rocky slopes in open deciduous woods and barrens, mainly on calcareous substrates, also shale and mafic and ultramafic rocks | Dry meadows, rock outcrops, open conifer woods |
Elevation | 150-2000 m (500-6600 ft) | 400-800 m (1300-2600 ft) |
Distribution |
AL; KY; MD; MO; NC; OH; PA; TN; VA; WV
|
ID; MT; WA; BC |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa |
Sibling taxa | ||
Name authority | Aiton: Hort. Kew. 2: 244. (1789) | M. J. Warnock: Phytologia 78: 97. (1995) |
Web links |