Dracocephalum ruyschiana L.

Tête-de-dragon de Ruysch (fr), Dracocéphale de Ruysch (fr)

Species

Angiosperms > Lamiales > Lamiaceae > Dracocephalum

Characteristics

Stems erect, minutely retrorse hairy, sparsely hairy toward base. Leaves sessile or subsessile, linear to lanceolate-linear, 3.4-6.2 cm, sparsely minutely hairy on veins, glabrescent, base narrowly cuneate, apex obtuse. Verticillasters in apical 4-6 nodes, ± crowded; bracts ovate-elliptic, to 1/2 as long as calyx, apex acute, densely ciliate. Calyx 1-1.2 cm, densely pubescent basally, sparsely pubescent at apex, 2-lipped to ca. 2/5 its length; upper lip teeth divisions to 2/3 of lip, middle tooth ovate-elliptic, slightly wider than lateral teeth, lateral teeth triangular to broadly lanceolate; lower lip purplish, with 2 lanceolate, apically acute teeth, margin ciliolate. Corolla blue-purple, 1.7-2.4 cm, pubescent outside. Fl. Jul.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread barochory
Mature width (meter) -
Mature height (meter) 0.25 - 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 6-9
Soil humidity 1-5
Soil texture 3-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 3-6

Usage

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

Cultivation

Can be grown by cuttings, divisions or seedlings.
Mode cuttings divisions seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -40
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Dracocephalum ruyschiana habit picture by Patrick Carteret (cc-by-sa)
Dracocephalum ruyschiana habit picture by Michel Julien-Laferrière (cc-by-sa)
Dracocephalum ruyschiana habit picture by Manuëlle (cc-by-sa)

Leaf

Dracocephalum ruyschiana leaf picture by Nicola Loher (cc-by-sa)
Dracocephalum ruyschiana leaf picture by manuseitz (cc-by-sa)
Dracocephalum ruyschiana leaf picture by Laurent (cc-by-sa)

Flower

Dracocephalum ruyschiana flower picture by Arvid Østbye (cc-by-sa)
Dracocephalum ruyschiana flower picture by Arvid Østbye (cc-by-sa)
Dracocephalum ruyschiana flower picture by Nicola Loher (cc-by-sa)

Distribution

Dracocephalum ruyschiana world distribution map, present in Austria, Belarus, Switzerland, Chile, China, Germany, France, Hungary, Italy, Kazakhstan, Kyrgyzstan, Montenegro, Norway, Poland, Romania, Sweden, Turks and Caicos Islands, Turkmenistan, Ukraine, and Uzbekistan

Identifiers

LSID urn:lsid:ipni.org:names:446513-1
WFO ID wfo-0000945457
COL ID 37KCJ
BDTFX ID 23067
INPN ID 95407
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Ruyschiana fasciculata Ruyschiana ruyschiana Ruyschiana spicata Dracocephalum alpinum Dracocephalum angustifolium Dracocephalum hyssopifolium Dracocephalum spicatum Zornia linearifolia Dracocephalum ruyschiana