Delphinium brachycentrum Ledeb.

Northern larkspur (en)

Species

Angiosperms > Ranunculales > Ranunculaceae > Delphinium

Characteristics

Stems 20-50(-80) cm; base often reddish, pubescent. Leaves cauline, 5-14, on proximal 1/5 of stem at anthesis; petiole 0.4-9 cm. Leaf blade round to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm. Inflorescences 5-18-flowered; pedicel 1-4.5 cm, pubescent; bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent. Flowers: sepals dark blue, apex rounded, puberulent, lateral sepals forward pointing, 17-24 × 7-9 mm, spurs straight to slightly decurved, ascending 30-60° above horizontal, 15-17 mm; lower petal blades ± covering stamens, 5-7 mm, clefts 0.5-1.5 mm; hairs sparse, local, centered, mostly above base of cleft, white. Fruits 14-17 mm, 3.5-4 times longer than wide, pubescent. Seeds wing-margined; seed coat cells ± elongate, surfaces roughened.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.0
Mature height (meter) 1.0
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

Well-drained tundra slopes from sea level to 1600 metres in the Yukon and Alaska.
Light 7-9
Soil humidity 4-6
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-7

Usage

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

Cultivation

Can be grown by cuttings or seedlings. Seeds needs stratification.
Mode cuttings seedlings
Germination duration (days) 14 - 28
Germination temperacture (C°) 10 - 12
Germination luminosity dark
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Delphinium brachycentrum unspecified picture

Distribution

Delphinium brachycentrum world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:710447-1
WFO ID wfo-0000639800
COL ID 6CHM2
BDTFX ID 78555
INPN ID 162317
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Delphinium alatum Delphinium brachycentrum Delphinium nutans Delphinium stenosepalum Delphinium staphydium Delphinium brachycentrum f. pallidum Delphinium maydellianum Delphinium ruthiae Delphinium brachycentrum subsp. maydellianum Delphinium blaisdellii Delphinium cheilanthum subsp. brachycentrum Delphinium cheilanthum subsp. middendorffii Delphinium cheilanthum var. middendorffii Delphinium brachycentrum subsp. beringii