Flora of North America species comparison

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Delphinium geraniifolium

Delphinium scopulorum

Clark Valley larkspur, Mogollon larkspur

Rocky Mountain larkspur
Stems

60-100 cm;

base reddish, puberulent, midstems pubescent.

50-120 cm;

base often reddish, puberulent, midstems glabrous to subglabrous.
Leaves

blade dark green, at least adaxially, fan-shaped to reniform, 2-5 × 3-7 cm, pubescent, especially abaxially; ultimate lobes 5-15, width 4-15 mm (basal lobes 5-15 mm), apex abruptly tapered, usually mucronate;

veins prominent.

blade round to pentagonal, 1.5-10 × 2-16 cm, nearly glabrous; ultimate lobes 5-19, width 5-30 mm (basal), 1-10 mm (cauline).
Inflorescences

20-90-flowered, dense, cylindric;

pedicel ascending to spreading, 1-2 cm, puberulent;

bracteoles 1-2 mm from flowers, green, linear, 4-6 mm, puberulent.

10-30-flowered, open, cylindric;

pedicel ascending to spreading, 1-3(-4.5) cm, puberulent;

bracteoles 2-7 mm from flowers, green, linear, 2-4 mm, puberulent.
Flowers

sepals dark blue to purple, puberulent, lateral sepals spreading to slightly forward pointing, 10-14 × 3-5 mm, spurs ascending 20-70°, truncate or downcurved apically, 12-15 mm;

lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 0.5-2 mm;

hairs sparse, local below junction of blade and claw, scattered on margins, white.

sepals bright dark blue, nearly glabrous, lateral sepals forward pointing, 12-15 × 4-6 mm, spurs gently decurved, slightly ascending, 15-20 mm;

lower petal blades ± covering stamens, 5-8 mm, clefts 1-3 mm;

hairs sparse, centered, mostly below junction of blade and claw, white.
Fruits

13-18 mm, 3-3.5 times longer than wide, puberulent.

16-20 mm, 4-4.5 times longer than wide, nearly glabrous.
Seeds

unwinged;

seed coat cells with margins straight, surfaces ± roughened.

wing-margined;

seed coat cells with margins straight, cell surfaces ± roughened.
2n

= 16.

= 16.

Delphinium geraniifolium

Delphinium scopulorum
Phenology Flowering summer. Flowering late summer–early autumn.
Habitat Heavy clay soil, dry meadows in coniferous woods Riparian forests and open woodlands
Elevation 1800-3400 m (5900-11200 ft) 1700-2600 m (5600-8500 ft)
Distribution
from FNA
AZ; NM
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; Mexico (Sonora)
[BONAP county map]
Discussion

Delphinium geraniifolium is a more pubescent analog of the closely related D. scopulorum, the former occurring in heavier soils at higher elvation.

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

Hybrids are known with Delphinium andesicola.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Wislizenana Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Wislizenana
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. 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. 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. stachydeum, D. sutherlandii, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. umbraculorum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
Synonyms D. tenuisectum subsp. amplibracteatum D. macrophyllum
Name authority Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) A. Gray: Smithsonian Contr. Knowl. 5(6): 9. (1853)
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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