Delphinium xantholeucum |
Delphinium sutherlandii |
|
---|---|---|
yellow-white larkspur |
Sutherland's larkspur |
|
Stems | 40-60(-100) cm; base often reddish, glabrous, ± glaucous. |
(15-)30-70 cm; base often reddish, glabrous. |
Leaves | blade round, 2-6 × 4-10 cm, nearly glabrous; ultimate lobes 3-15, width 3-8 mm (basal), 1-5 mm (cauline). |
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 | 10-20(-60)-flowered, narrowly pyramidal; pedicel spreading, yellowish, 1.5-3 cm, ± glandular-puberulent; bracteoles 6-12 mm from flowers, green to light brown, linear to lanceolate, 4-7 mm, nearly glabrous. |
(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 yellow, glabrous, lateral sepals reflexed, 9-12 × 3-5 mm, spurs straight, ascending ca. 45° above horizontal, 11-15 mm; lower petal blades elevated, exposing stamens, 3-5 mm, clefts 1-2 mm; hairs centered mostly on inner lobes 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 | 15-22 mm, 3-4 times longer than wide, glabrous to glandular-puberulent. |
(13-)18-25 mm, 4.5-5.2 times longer than wide, puberulent. |
Seeds | seed coat cells narrow, short, cell margins straight, surfaces smooth. |
winged on 1 margin; seed coat cell surfaces roughened. |
2n | = 16. |
= 16. |
Delphinium xantholeucum |
Delphinium sutherlandii |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Slopes in open yellow pine forests, grasslands, sage scrub | Dry meadows, rock outcrops, open conifer woods |
Elevation | 150-600 m (500-2000 ft) | 400-800 m (1300-2600 ft) |
Distribution |
WA
|
ID; MT; WA; BC |
Discussion | Of conservation concern. Delphinium xantholeucum is very local; much of the habitat of this species has been converted to orchards. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa |
Sibling taxa | ||
Name authority | Piper: Contr. U.S. Natl. Herb. 11: 280. (1906) | M. J. Warnock: Phytologia 78: 97. (1995) |
Web links |