FNA: Delphinium andersonii vs. Delphinium sapellonis

	Delphinium andersonii	Delphinium sapellonis
	Anderson larkspur, Anderson's larkspur, desert larkspur	Sapello Canyon larkspur
Stems	(20-)30-60(-90) cm; base reddish, glabrous.	(50-)100-180(-220) cm; base sometimes reddish, glabrous sometimes glaucous.
Leaves	blade round, 1.5-4 × 2-6 cm, nearly glabrous; ultimate lobes 5-30, width 2-8 mm (basal), 1-4 mm (cauline); lobe width of proximal leaves less than 4 mm.	blade round to pentagonal, 6-10 × 8-16 cm, nearly glabrous; ultimate lobes 5-15, width 5-25 mm.
Inflorescences	10-25-flowered, cylindric; pedicel sigmoid (proximally spreading, distally ascending), 1-4(-6.8) cm, glabrous to puberulent; bracteoles 2-6(-8) mm from flowers, green, linear, 4-6(-11) mm, ± puberulent.	(12-)30-80(-120)-flowered; pedicel 0.5-2 cm, glandular-puberulent; bracteoles 3-5 mm from flowers, green to purple, linear, 5-8 mm, glandular-puberulent.
Flowers	sepals dark blue, nearly glabrous, lateral sepals spreading to reflexed, 9-16 × 3-7 mm, spurs horizontal to slightly ascending, often decurved apically, 12-18 mm; lower petal blades elevated, ± exposing stamens, 4-8 mm, clefts 1-4 mm; hairs centered, mostly between claw and base of cleft, white.	sepals (in bud) yellowish or brownish purple, becoming browner or yellower with age, glandular-puberulent, lateral sepals forward pointing, 8-12 × 3-5 mm, spurs straight, ascending 20-45° above horizontal, 8-11 mm; lower petal blades slightly elevated, ± exposing stamens, 2.5-5 mm, clefts 1-2 mm; hairs centered, mostly above base of cleft, yellow.
Fruits	17-32 mm, 4-5.5 times longer than wide, glabrous.	12-18 mm, 3-4 times longer than wide, puberulent.
Seeds	seed coat cells ± brick-shaped, cell margins ± undulate, surfaces smooth.	wing-margined; seed coat cells elongate, surfaces smooth.
2n	= 16.

	Delphinium andersonii	Delphinium sapellonis
Phenology	Flowering late spring–early summer.	Flowering summer.
Habitat	Talus, cold desert scrub, often growing up through shrubs, low places where snow collects	Subalpine meadows and open coniferous forest
Elevation	1300-2000 m (4300-6600 ft)	2600-3500 m (8500-11500 ft)
Distribution	CA; ID; MT; NV; OR; UT [WildflowerSearch map]	NM [BONAP county map]
Discussion	In much of its range Delphinium andersonii hybridizes occasionally with members of the D. nuttallianum complex and apparently with D. parishii in at least one site in California. These three taxa, with D. scaposum, form an interesting group in that they appear to be ecological replacements for one another, with D. parishii occupying arid, hot deserts to the south and southwest, D. andersonii growing in cooler, higher latitude and altitude deserts farther north, D. scaposum in cool deserts farther east, and D. nuttallianum at higher elevations in much of the geographic range of the other three species. Delphinium andersonii is often mistaken for D. nuttallianum. Most individuals of D. andersonii (roots much larger and more fibrous; stems solidly attached to roots; fruits long, narrow, erect; inflorescences usually longer and narrower at base; and pedicel sigmoid) can easily be distinguished from D. nuttallianum (roots smaller and not fibrous; stems tenuously attached to roots; fruits shorter, proportionally thicker, spreading; inflorescences relatively shorter and wider at base; and pedicel nearly straight). Although roots of Delphinium andersonii are quite similar to those of D. antoninum, the two taxa may be readily distinguished by most features that separate D. nuttallianum from D. andersonii. The name Delphinium menziesii was misapplied to D. andersonii by S. Watson. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Delphinium sapellonis hybridizes with D. barbeyi and D. robustum. It replaces D. robustum and represents the southern Cordilleran complex at higher elevations of the southern Sangre de Cristo Mountains east of Santa Fe. It is not known elsewhere. (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. Exaltata
Sibling taxa	D. alabamicum, D. alpestre, 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. 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. 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. andersonii subsp. cognatum
Name authority	A. Gray: Bot. Gaz. 12: 53. (1887)	Tidestrom: Bot. Gaz. 34: 453. (1902)
Web links	Local floras: CA, OR Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Delphinium sapellonis

Anderson larkspur, Anderson's larkspur, desert larkspur

Sapello Canyon larkspur

Stems

(20-)30-60(-90) cm;

base reddish, glabrous.

(50-)100-180(-220) cm;

base sometimes reddish, glabrous sometimes glaucous.

Leaves

blade round, 1.5-4 × 2-6 cm, nearly glabrous; ultimate lobes 5-30, width 2-8 mm (basal), 1-4 mm (cauline);

lobe width of proximal leaves less than 4 mm.

blade round to pentagonal, 6-10 × 8-16 cm, nearly glabrous; ultimate lobes 5-15, width 5-25 mm.

Inflorescences

10-25-flowered, cylindric;

pedicel sigmoid (proximally spreading, distally ascending), 1-4(-6.8) cm, glabrous to puberulent;

bracteoles 2-6(-8) mm from flowers, green, linear, 4-6(-11) mm, ± puberulent.

(12-)30-80(-120)-flowered;

pedicel 0.5-2 cm, glandular-puberulent;

bracteoles 3-5 mm from flowers, green to purple, linear, 5-8 mm, glandular-puberulent.

Flowers

sepals dark blue, nearly glabrous, lateral sepals spreading to reflexed, 9-16 × 3-7 mm, spurs horizontal to slightly ascending, often decurved apically, 12-18 mm;

lower petal blades elevated, ± exposing stamens, 4-8 mm, clefts 1-4 mm;

hairs centered, mostly between claw and base of cleft, white.

sepals (in bud) yellowish or brownish purple, becoming browner or yellower with age, glandular-puberulent, lateral sepals forward pointing, 8-12 × 3-5 mm, spurs straight, ascending 20-45° above horizontal, 8-11 mm;

lower petal blades slightly elevated, ± exposing stamens, 2.5-5 mm, clefts 1-2 mm;

hairs centered, mostly above base of cleft, yellow.

Fruits

17-32 mm, 4-5.5 times longer than wide, glabrous.

12-18 mm, 3-4 times longer than wide, puberulent.

Seeds

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

wing-margined;

seed coat cells elongate, surfaces smooth.

= 16.

Delphinium andersonii

Delphinium sapellonis

Phenology

Flowering late spring–early summer.

Flowering summer.

Habitat

Talus, cold desert scrub, often growing up through shrubs, low places where snow collects

Subalpine meadows and open coniferous forest

Elevation

1300-2000 m (4300-6600 ft)

2600-3500 m (8500-11500 ft)

Distribution

CA; ID; MT; NV; OR; UT

[WildflowerSearch map]

[BONAP county map]

Discussion

In much of its range Delphinium andersonii hybridizes occasionally with members of the D. nuttallianum complex and apparently with D. parishii in at least one site in California. These three taxa, with D. scaposum, form an interesting group in that they appear to be ecological replacements for one another, with D. parishii occupying arid, hot deserts to the south and southwest, D. andersonii growing in cooler, higher latitude and altitude deserts farther north, D. scaposum in cool deserts farther east, and D. nuttallianum at higher elevations in much of the geographic range of the other three species. Delphinium andersonii is often mistaken for D. nuttallianum. Most individuals of D. andersonii (roots much larger and more fibrous; stems solidly attached to roots; fruits long, narrow, erect; inflorescences usually longer and narrower at base; and pedicel sigmoid) can easily be distinguished from D. nuttallianum (roots smaller and not fibrous; stems tenuously attached to roots; fruits shorter, proportionally thicker, spreading; inflorescences relatively shorter and wider at base; and pedicel nearly straight).

Although roots of Delphinium andersonii are quite similar to those of D. antoninum, the two taxa may be readily distinguished by most features that separate D. nuttallianum from D. andersonii. The name Delphinium menziesii was misapplied to D. andersonii by S. Watson.

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

Delphinium sapellonis hybridizes with D. barbeyi and D. robustum. It replaces D. robustum and represents the southern Cordilleran complex at higher elevations of the southern Sangre de Cristo Mountains east of Santa Fe. It is not known elsewhere.

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

Source

FNA vol. 3.

Parent taxa

Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa

Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata

Sibling taxa

D. alabamicum, D. alpestre, 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. 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. 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. andersonii subsp. cognatum

Name authority

A. Gray: Bot. Gaz. 12: 53. (1887)

Tidestrom: Bot. Gaz. 34: 453. (1902)

Web links

Local floras: CA, OR
Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
LBJ Wildflower Center
SEINet
Plants of the World Online
Encyclopedia of Life
Wikipedia
Google Image Search

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).

Choose a data source: Flora of North America, OregonFlora

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Delphinium andersonii

Delphinium sapellonis

Delphinium andersonii

Delphinium sapellonis