Flora of North America species comparison

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Delphinium distichum

Delphinium novomexicanum
Delphinium distichum

Burke's larkspur, meadow larkspur, strict larkspur, two-spike larkspur

New Mexico larkspur, White Mountain larkspur
Stems

(25-)30-60(-80) cm;

base sometimes reddish, puberulent.

90-180(-250) cm;

base usually green, glabrous.
Leaves

blade cuneate to semicircular, 1-5 × 1.5-7 cm, puberulent; ultimate lobes 5-19, width 2-8(-15) mm (basal), 0.5-3(-5) mm (cauline);

margins of basal leaf, measured less than 1 cm from blade base, demarcating considerably more than 90° of arc when leaf laid flat;

most cauline leaf blades exceeding internodes.

blade round to pentagonal, 5-10 × 8-18 cm, nearly glabrous; ultimate lobes 5-21, width 4-15 mm.
Inflorescences

8-30(-40)-flowered, usually dense;

pedicel 0.5-1.5 cm, puberulent;

bracteoles 0-3 mm from flowers, green to blue, linear, 4-8 mm, puberulent.

(20-)30-70(-140)-flowered;

pedicel 0.5-1.5 cm, puberulent;

bracteoles 1-3 mm from flowers, green, linear, 5-8 mm, puberulent.
Flowers

sepals dark blue to bluish purple, puberulent, lateral sepals ± erect, 8-12 × 3.5-5 mm, spurs straight, horizontal or nearly so, 9-15 mm;

lower petal blades ± covering stamens, 4.5-6.5 mm, clefts 2-3 mm;

hairs centered mostly near base of cleft, white.

sepals (in bud) purple to lavender, fading brownish, puberulent, lateral sepals ± forward pointing, 7-11 × 4-5 mm, spurs straight to gently decurved, ascending 30-45° above horizontal, 7-11 mm;

lower petal blades ± covering stamens, 3.5-6 mm, clefts 1-2 mm;

hairs mostly centered between base of cleft and junction of blade and claw, white or yellow.
Fruits

7-13 mm, 3.5-4 times longer than wide, ± puberulent.

12-16 mm, 3-4 times longer than wide, puberulent.
Seeds

seed coat cells with surfaces roughened.

wing-margined;

seed coat cells elongate, surfaces ± roughened.
2n

= 16.

= 16.

Delphinium distichum

Delphinium novomexicanum
Phenology Flowering late spring–early summer. Flowering summer to early autumn.
Habitat Wet meadows Meadows in coniferous forest
Elevation 100-2400 m (300-7900 ft) 2200-3900 m (7200-12800 ft)
Distribution
from FNA
ID; MT; OR; WA; WY; BC
[WildflowerSearch map]
from FNA
NM
[BONAP county map]
Discussion

Delphinium distichum hybridizes with D. multiplex and D. nuttallianum (D. ×diversicolor Rydberg). The name D. burkei has often been misapplied to D. distichum.

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

Delphinium novomexicanum represents the southern Cordilleran complex in the Sacramento and White mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Depauperata Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata
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. 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. 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. 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
Synonyms D. strictum var. distichiflorum D. sierrae-blancae
Name authority Geyer ex Hooker: J. Bot. 6: 68. (1847) Wooton: Bull. Torrey Bot. Club 37: 37. (1910)
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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