Flora of North America species comparison

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Delphinium umbraculorum

Delphinium sutherlandii

umbrella larkspur

Sutherland's larkspur
Stems

40-70(-90) cm;

base often reddish, glabrous or puberulent.

(15-)30-70 cm;

base often reddish, glabrous.
Leaves

blade round to pentagonal, 1.5-4 × 2-6 cm, nearly glabrous; ultimate lobes 3-13, width 3-20 mm (basal), 1-8 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

(5-)10-25(-45)-flowered, open, narrowly pyramidal;

pedicel 0.5-3(-7) cm, glabrous to puberulent;

bracteoles 3-7 mm from flowers, green, linear, 3-6 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, puberulent, lateral sepals spreading, 9-16 × 4-7 mm, spurs gently upcurved, ascending 30-45° above horizontal, 8-14 mm;

lower petal blades elevated, exposing stamens, 3.5-6 mm, clefts 0.5-1.5 mm;

hairs densest near junction of blade and claw above base of cleft, centered or on inner lobes, 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

9-16(-19) mm, 2.5-3(-4) times longer than wide, puberulent.

(13-)18-25 mm, 4.5-5.2 times longer than wide, puberulent.
Seeds

seed coat cells brick-shaped, cell margins straight, surfaces smooth.

winged on 1 margin;

seed coat cell surfaces roughened.
2n

= 16.

= 16.

Delphinium umbraculorum

Delphinium sutherlandii
Phenology Flowering late spring–early summer. Flowering spring.
Habitat Slopes in oak forests Dry meadows, rock outcrops, open conifer woods
Elevation 400-1600 m (1300-5200 ft) 400-800 m (1300-2600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; MT; WA; BC
[BONAP county map]
Discussion

Delphinium umbraculorum is most often confused with D. patens subsp. hepaticoideum; refer to discussion of that taxon for distinguishing features. Hybrids occur with D. parryi and D. patens subsp. montanum.

(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
D. alabamicum, D. alpestre, D. andersonii, D. andesicola, D. antoninum, D. bakeri, D. barbeyi, D. basalticum, D. bicolor, D. brachycentrum, D. californicum, D. cardinale, D. carolinianum, D. decorum, D. depauperatum, D. distichum, D. elatum, D. exaltatum, D. geraniifolium, D. geyeri, D. glareosum, D. glaucescens, D. glaucum, D. gracilentum, D. gypsophilum, D. hansenii, D. hesperium, D. hutchinsoniae, D. inopinum, D. lineapetalum, D. luteum, D. madrense, D. menziesii, D. multiplex, D. newtonianum, D. novomexicanum, D. nudicaule, D. nuttallianum, D. nuttallii, D. parishii, D. parryi, D. patens, D. polycladon, D. purpusii, D. ramosum, D. recurvatum, D. robustum, D. sapellonis, D. scaposum, D. scopulorum, D. stachydeum, D. sutherlandii, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
D. alabamicum, D. alpestre, D. andersonii, D. andesicola, D. antoninum, D. bakeri, D. barbeyi, D. basalticum, D. bicolor, D. brachycentrum, D. californicum, D. cardinale, D. carolinianum, D. decorum, D. depauperatum, D. distichum, D. elatum, D. exaltatum, D. geraniifolium, D. geyeri, D. glareosum, D. glaucescens, D. glaucum, D. gracilentum, D. gypsophilum, D. hansenii, D. hesperium, D. hutchinsoniae, D. inopinum, D. lineapetalum, D. luteum, D. madrense, D. menziesii, D. multiplex, D. newtonianum, D. novomexicanum, D. nudicaule, D. nuttallianum, D. nuttallii, D. parishii, D. parryi, D. patens, D. polycladon, D. purpusii, D. ramosum, D. recurvatum, D. robustum, D. sapellonis, D. scaposum, D. scopulorum, D. stachydeum, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. umbraculorum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
Name authority H. F. Lewis & Epling: Brittonia 8: 19. (1954) M. J. Warnock: Phytologia 78: 97. (1995)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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