Delphinium trolliifolium |
Delphinium sutherlandii |
|
---|---|---|
Columbian larkspur, cow-poison, poison delphinium, poison larkspur |
Sutherland's larkspur |
|
Stems | (40-)60-120(-180) cm; base usually reddish, glabrous to puberulent. |
(15-)30-70 cm; base often reddish, glabrous. |
Leaves | blade ± pentagonal, 4-8 × 7-16 cm, margins ± incised, nearly glabrous; ultimate lobes 0-9, width 15-30 mm (basal), 5-20 mm (cauline), widest at middle or in proximal 1/2. |
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 | (5-)14-40(-75)-flowered, ± open, at least 2 times longer than wide; pedicel 1-4(-9) cm, puberulent to glabrous; bracteoles (2-)6-12 mm from flowers, green, linear, 5-9(-14) 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 dark blue, glabrous, lateral sepals spreading, (8-)14-21 × 5-9 mm, spurs straight or downcurved at apex, within 20° of horizontal, (10-)16-23 mm; lower petal blades covering stamens, 5-10 mm, clefts 1.5-3 mm; hairs sparse, mostly near junction of blade and claw, centered or on inner lobes, well dispersed, yellow. |
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-)23-34 mm, 3.8-5.5 times longer than wide, glabrous. |
(13-)18-25 mm, 4.5-5.2 times longer than wide, puberulent. |
Seeds | unwinged; seed coats smooth. |
winged on 1 margin; seed coat cell surfaces roughened. |
2n | = 16. |
= 16. |
Delphinium trolliifolium |
Delphinium sutherlandii |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Oak woods, coastal chaparral, wet woodlands | Dry meadows, rock outcrops, open conifer woods |
Elevation | 30-1100 m (100-3600 ft) | 400-800 m (1300-2600 ft) |
Distribution |
CA; OR
|
ID; MT; WA; BC |
Discussion | Delphinium trolliifolium occurs in the northern Coast Range of California, the Columbia River Valley to just east of Mt. Hood, and the Willamette Valley of Oregon upstream to Lane County. California plants differ somewhat from Oregon plants in pubescence patterns and habitat preferences. Further study may show that two entities are involved here. Hybrids between Delphinium trolliifolium and D. decorum, D. menziesii subsp. pallidum (D. ×pavonaceum Ewan, Peacock larkspur), D. nudicaule, D. nuttallianum, and D. nuttallii are known. Delphinium trolliifolium is likely to be confused only with D. bakeri. Refer to discussion under that species for differences. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa |
Sibling taxa | ||
Name authority | A. Gray: Proc. Amer. Acad. Arts 8: 375. (1872) | M. J. Warnock: Phytologia 78: 97. (1995) |
Web links |