Flora of North America species comparison

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Delphinium parishii

Delphinium distichum

desert larkspur, Parish's larkspur
Delphinium distichum

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

(17-)30-60(-100) cm;

base reddish or not, glabrous to puberulent.

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

base sometimes reddish, puberulent.
Leaves

blade pentagonal, 0.7-5 × 1-8 cm, glabrous to puberulent; ultimate lobes 3-18, width 2-18 mm (basal), 0.5-8 mm (cauline).

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.
Inflorescences

(6-)10-40(-74)-flowered, cylindric;

pedicel ascending-spreading, (0.3-)1-2.5(-4.8) cm, glabrous to puberulent;

bracteoles 2-5(-10) mm from flowers, green, lance-linear, 2-6(-16) mm, glabrous to puberulent.

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.
Flowers

sepals dark blue to white to pink, often puberulent, lateral sepals reflexed or spreading, (7-)9-13 × 2-7 mm, spurs ± decurved, ascending 20-45° above horizontal, 7-15 mm;

lower petal blades ± elevated, exposing stamens, blue or white to pink (concolorous with sepals), 3-6 mm, clefts 1-3 mm;

hairs mostly near base of cleft, centered or on inner lobes, white.

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.
Fruits

9-21 mm, 2-4 times longer than wide, glabrous to puberulent.

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

seed coat cells ± brick-shaped, cell margins undulate, surfaces roughened.

seed coat cells with surfaces roughened.
2n

= 16.

Delphinium parishii

Delphinium distichum
Phenology Flowering late spring–early summer.
Habitat Wet meadows
Elevation 100-2400 m (300-7900 ft)
Distribution
from FNA
AZ; CA; NV; UT; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; MT; OR; WA; WY; BC
[WildflowerSearch map]
Discussion

Subspecies 3 (3 in the flora).

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

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.)
Key
1. Lateral sepals reflexed; sepals bright, ± sky blue.
subsp. parishii
1. Lateral sepals not reflexed; sepals dark blue or white to pink.
→ 2
2. Sepals dark blue; flowers rarely present after 20 May.
subsp. subglobosum
2. Sepals white, pinkish, or purplish; flowers rarely present before 20 May.
subsp. pallidum
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Depauperata
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. 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. 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
Subordinate taxa
D. parishii subsp. pallidum, D. parishii subsp. parishii, D. parishii subsp. subglobosum
Synonyms D. strictum var. distichiflorum
Name authority A. Gray: Bot. Gaz. 12: 53. (1887) Geyer ex Hooker: J. Bot. 6: 68. (1847)
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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