Asarum caulescens Maxim.

Species

Angiosperms > Piperales > Aristolochiaceae > Asarum

Characteristics

Herbs sparsely to moderately white pubescent, hairs remaining white when dried. Rhizomes horizontal, 2-3 mm in diam., internodes 3-6 cm. Leaves paired; petiole 6-12 cm, sparsely villous; leaf blade uniformly colored, subcordate, 4-9 × 5-10 cm, adaxial surface sparsely pubescent, base cordate, lateral lobes 1.5-2.5 × 2.5-4 cm, apex acuminate; cataphylls broadly ovate, ca. 1.3 × 1.3 cm. Peduncle pendent, 1-2 cm. Calyx pink to purplish, cupulate, 0.8-1.3 × 0.8-1.4 cm; sepals free beyond attachment to ovary, abaxially villous, adaxially puberulent; pseudotube subglobose, 0.3-0.6 × 0.8-1.3 cm; lobes reflexed, triangular, 0.3-0.6 × 0.6-0.8 cm. Stamens 12, slightly exserted; filaments as long as anthers; connectives extended beyond anthers, subcylindric. Ovary inferior. Styles connate, apex 6-cleft, slightly exserted; stigmas terminal. Fl. Apr-May.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination
Spread -
Mature width (meter) -
Mature height (meter) 0.09 - 0.11
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Mixed forests, in humus-rich soils; at elevations from 700-1,700 metres.
Light 1-6
Soil humidity 5-7
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-10

Usage

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

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 7 - 30
Germination temperacture (C°) 15 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Asarum caulescens unspecified picture

Distribution

Asarum caulescens world distribution map, present in China and Japan

Identifiers

LSID urn:lsid:ipni.org:names:93473-1
WFO ID wfo-0000550799
COL ID H4PZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Asarum caulescens Asarum franchetianum Japonasarum caulescens Asarum brevistylum Asarum caulescens f. geroensis