Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.

enable glossary links

Delphinium hesperium

Parry's larkspur, San Bernardino larkspur

foothill larkspur, western larkspur

Stems

(10-)40-80(-110) cm;

base reddish, puberulent.

(11-)40-80(-120) cm;

base usually reddish, longitudinally ridged, puberulent.

Leaves

blade pentagonal, 1-7 × 2-10 cm, ± puberulent; ultimate lobes 3-27, width 1-20 mm (basal), 0.5-5 mm (cauline).

blade round to pentagonal, 1-4 × 2-6 cm, usually puberulent, especially abaxially; ultimate lobes 3-14, width 3-8 mm (basal), 2-5 mm (cauline).

Inflorescences

(2-)8-24(-48)-flowered, cylindric;

pedicel ± spreading, (0.5-)1-3(-6.8) cm, usually puberulent;

bracteoles 2-7(-16) mm from flowers, green to blue, lance-linear, 2-6(-10) mm, puberulent.

(5-)15-30(-100)-flowered, moderately open;

pedicel (0.5-)1-2.5(-7.5) cm, puberulent;

bracteoles 2-6(-12) mm from flowers, green to blue, margins often white, linear-lanceolate, 3-7(-12) mm, puberulent.

Flowers

sepals dark blue to bluish purple, puberulent, lateral sepals spreading or reflexed, (7-)10-20(-25) × 4-9 mm, spurs straight, ascending 0-30° above horizontal, 9-17(-21) mm;

lower petal blades slightly elevated, ± exposing stamens, 3-10 mm, clefts 2-6 mm;

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

sepals dark blue to white, puberulent, lateral sepals spreading, 7-13(-16) × 3-10 mm, spurs straight to upcurved, ascending 30-45° above horizontal, 9-18 mm;

lower petal blades slightly elevated, ± exposing stamens, 3-8 mm, clefts 1-5 mm;

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

Fruits

10-19 mm, 2.8-4 times longer than wide, puberulent or glabrous.

8-18 mm, 2.2-3(-4.2) times longer than wide, sparse puberulent.

Seeds

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

not echinate, appearing ± smooth to naked eye;

seed coat cells with margins straight, surfaces smooth or roughened.

Delphinium hesperium

Distribution

North America (Calif)

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Subspecies 5 (5 in the flora).

A number of local phases are found in Delphinium parryi. Five of these appear consistently distinct and are recognized here. Other phases may be locally distinct but grade into other nearby phases. Delphinium parryi hybridizes with D. cardinale (D. ×inflexum Davidson).

The Kawaiisu used the ground root of Delphinium parryi medicinally as a salve for swollen limbs (D. E. Moerman 1986, no subspecies specified).

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

Subspecies 3 (3 in the flora).

Delphinium hesperium is thought to be poisonous to cattle (D. E. Moerman 1986, no subspecies specified). It is often confused with D. hansenii. See discussion under that species for distinguishing features.

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

Key

1. Basal leaves usually absent at anthesis.	→ 2
1. Basal leaves usually present at anthesis.	→ 3
2. Lateral sepals 16–25 mm.	subsp. blochmaniae
2. Lateral sepals 9–15 mm.	subsp. parryi
3. Lateral sepals 7–11 mm; above 700 m elevation.	subsp. purpureum
3. Lateral sepals (9–)12–20 mm; below 700 m elevation.	→ 4
4. Sepals usually reflexed.	subsp. eastwoodiae
4. Sepals usually spreading.	subsp. maritimum

1. Lateral sepals 4(–5) mm wide or less; inflorescence dense (individual flowers often touching in pressed specimens).	subsp. cuyamacae
1. Lateral sepals more than 4 mm wide; inflorescence open (individual flowers seldom touching in pressed specimens).	→ 2
2. Sepals dark blue-purple.	subsp. hesperium
2. Sepals white to pinkish, rarely light blue.	subsp. pallescens

Source

FNA vol. 3.

Parent taxa

Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa

Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata

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. 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. 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. parryi subsp. blochmaniae, D. parryi subsp. eastwoodiae, D. parryi subsp. maritimum, D. parryi subsp. parryi, D. parryi subsp. purpureum

D. hesperium subsp. cuyamacae, D. hesperium subsp. hesperium, D. hesperium subsp. pallescens

Name authority

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

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).

Choose a data source: Flora of North America

The species comparison tool is brought to you by: