Delphinium scaposum
Delphinium gypsophilum
bare-stem larkspur, desert larkspur, tall mountain larkspur
gypsum-loving larkspur, Pinoche Creek larkspur
25-50(-65) cm;
base usually reddish, glabrous, glaucous.
(30-)60-100(-150) cm;
base usually reddish, glabrous, glaucous.
blade ± round, 0.5-4 × 0.5-6 cm, puberulent to glabrous; ultimate lobes 3-9, width 2-15 mm (basal), 0.5-3 mm (cauline).
blade round to pentagonal, 1.5-6 × 2-12 cm, nearly glabrous; ultimate lobes 3-12, width 3-24 mm (basal), 1-8 mm (cauline).
10-25(-40)-flowered, cylindric;
pedicel ascending, 0.6-2.5 cm, glabrous;
bracteoles 2-5 mm from flowers, green to blue, linear-lanceolate, 2-4 mm, glabrous.
15-30(-64)-flowered, cylindric;
pedicel spreading, (0.5-)1.5-3.5 cm, glabrous;
bracteoles 2-6 mm from flowers, green, linear, 2-5 mm, glabrous.
sepals bright dark blue, glabrous, lateral sepals spreading, 11-14 × 4-6 mm, spurs straight, sometimes decurved, ascending 30-45° above horizontal, 13-18 mm;
lower petal blades elevated, exposing stamens, 5-8 mm, cleft 2-4 mm;
hairs mostly centered on inner lobes near junction of blade and claw, white.
sepals rarely reflexed, white to pink, nearly glabrous, lateral sepals spreading, 7-19 × 3-10 mm, spurs straight to upcurved, ascending 30-45° above horizontal, 7-15 mm;
lower petal blades elevated, exposing stamens, 3-8 mm, clefts 1-4 mm;
hairs centered near base of cleft, ± evenly distributed, white.
12-16 mm, 2.5-3 times longer than wide, glabrous.
9-18 mm, 2.5-3.2 times longer than wide, puberulent.
seed coat cells ± brick-shaped, cell margins straight, surfaces smooth.
seed coat cells brick-shaped, cell margins undulate, surfaces roughened.
= 16.
Delphinium scaposum
Delphinium gypsophilum
Delphinium scaposum is reportedly used in Navajo and Hopi religous ceremonies, as well as for a wash following childbirth (D. E. Moerman 1986).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 2 (2 in the flora).
Delphinium gypsophilum is sometimes confused with D. hesperium subsp. pallescens, D. recurvatum, and the white-flowered phases of D. hansenii subsp. kernense. The echinate seeds and long-haired petioles of D. hansenii immediately distinguish it from D. gypsophilum, which has neither.
Delphinium gypsophilum is related, and similar in many respects, to D. recurvatum. The two may be distinguished morphologically by their sepals. Delphinium recurvatum has reflexed, blue sepals; those of D. gypsophilum are spreading and white, although they may change to light blue when dry. Plants of D. recurvatum normally are less than 60 cm; those of D. gypsophilum are usually more than 60 cm. Ecologically, D. recurvatum occupies level ground among shrubs, typically in alkaline valley bottoms; D. gypsophilum is found on well-drained hillsides among grasses and in chaparral and oak woodland.
From Delphinium hesperium subsp. pallescens, specimens of D. gypsophilum may be separated by their much more finely dissected leaves, with less surface area, stem base usually reddish, stems frequently glaucous proximally, undulate margins of seed coat cells, and absence of striations in stem base of dried specimens. In contrast, D. hesperium subsp. pallescens has leaves less dissected, with greater surface area, stem base rarely reddish, stem not glaucous proximally, seed coat cells with straight margins, and striations present on the proximal stem of dried specimens.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Lower petals 5–8 mm; lateral sepals 10 mm or more; pedicel usually more than 1 cm apart. | subsp. gypsophilum |
1. Lower petals 3–5 mm; lateral sepals 10 mm or less; pedicel usually less than 1 cm apart. | subsp. parviflorum |
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WildflowerSearch
iNaturalist
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