Delphinium exaltatum Aiton

Tall larkspur (en)

Species

Angiosperms > Ranunculales > Ranunculaceae > Delphinium

Characteristics

Stems 70-200 cm; base reddish, nearly glabrous. Leaves cauline, 7-24, absent from proximal 1/5 of stem at anthesis; petiole 1-15 cm. Leaf blade pentagonal, 2-7 × 3-9 cm, puberulent; ultimate lobes 3-7, width 5-25 mm; midcauline leaf lobes less than 3 times longer than wide. Inflorescences 8-30-flowered; pedicel 0.5-2 cm, puberulent; bracteoles 2-4 mm from flowers, green, linear, 2-4 mm, puberulent. Flowers: sepals whitish to pale lavender or purple, puberulent, lateral sepals forward pointing, 9-11 × 4-6 mm, spurs straight, as much as 45° above or below horizontal, 9-12 mm; lower petal blades ± covering stamens, 3-5 mm, clefts 1-2 mm; hairs centered, mostly near base of cleft, white. Fruits 7-12 mm, 2-2.5 times longer than wide, ± puberulent. Seeds ± wing-margined; seed coat cells elongate, surfaces smooth.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.7 - 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 3-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-7

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 14 - 28
Germination temperacture (C°) 10 - 12
Germination luminosity dark
Germination treatment stratification
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Delphinium exaltatum flower picture by David Smith (cc-by-sa)

Distribution

Delphinium exaltatum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:710603-1
WFO ID wfo-0000640055
COL ID 6CHM9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Delphinastrum exaltatum Delphinium tridactylum Delphidium exaltatum Delphinium exaltatum Delphinium exaltatum var. typicum Delphinium urceolatum var. exaltatum