Flora of North America species comparison

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Delphinium viridescens

Delphinium umbraculorum
Delphinium viridescens

Wenatchee larkspur

umbrella larkspur
Stems

90-150 cm;

base usually green, glabrous.

40-70(-90) cm;

base often reddish, glabrous or puberulent.
Leaves

blade cuneate to semicircular, 2-5 × 3-12 cm, nearly glabrous; ultimate lobes 3-21, width 1-8 mm.

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).
Inflorescences

25-80-flowered, dense;

pedicel 0.5-2 cm, glandular-pubescent;

bracteoles 1-4 mm from flowers, green, lanceolate, 3.5-6 mm, glandular-pubescent.

(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.
Flowers

sepals yellowish green, nearly glabrous, lateral sepals forward pointing, 7-9 × 3-4 mm, spurs decurved, 30-45° below horizontal, often hooked apically, 8-11 mm;

lower petal blades ± covering stamens, 4-6 mm, clefts 0.5-1.5 mm;

hairs centered, mostly near junction of blade and claw, yellow.

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.
Fruits

8-11 mm, 2.5-3 times longer than wide, puberulent.

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

± wing-margined;

seed coat cells with surfaces ± roughened.

seed coat cells brick-shaped, cell margins straight, surfaces smooth.
2n

= 16.

Delphinium viridescens

Delphinium umbraculorum
Phenology Flowering summer. Flowering late spring–early summer.
Habitat Wet meadows and streamsides in coniferous forest, heavy clay soils Slopes in oak forests
Elevation 500-1000 m (1600-3300 ft) 400-1600 m (1300-5200 ft)
Distribution
from FNA
WA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Delphinium viridescens is local in mountains southwest of Wenatchee, Washington.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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. Multiplex Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa
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. umbraculorum, D. variegatum, 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. sutherlandii, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
Name authority Leiberg: Proc. Biol. Soc. Wash. 11: 39. (1897) H. F. Lewis & Epling: Brittonia 8: 19. (1954)
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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