WorldFloraDB - Petasites japonicus

Characteristics

A shrub. It has runners. It grows 1-1.2 m high. The leaves are large. They are kidney shaped. They are 1-1.2 m across. The flowers are greenish-white and in crowded heads. They appear before the leaves.

Life form

perennial

Growth form

herb

Growth support

free-standing

Foliage retention

deciduous

Sexuality

dioecy

Pollination

entomogamy

Spread

-

Mature width (meter)

1.5

Mature height (meter)

0.6

Root system

rhizome

Rooting depth (meter)

-

Root diameter (meter)

-

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

c3

Environment

A temperate plant. It grows near ponds and streams. In Sichuan. It suits hardiness zones 5-10.

More

Moist woods and thickets. Sreamsides, grassland and thickets in China.

Light
Soil humidity
Soil texture
Soil acidity
Soil nutriment
Hardiness (USDA)

Usage

The long leaf stalk is peeled and pickled in Japan. They are seasoned with salt or soy sauce. They are used in soups. The flower buds are used as a vegetable and condiment. They are eaten while still green. Caution: It contains chemicals that cause cancer. The flower stalks can affect the liver.

Uses	environmental use food medicinal
Edible	flowers leaves stems
Therapeutic use	Antitussive (unspecified), Dyspnea (unspecified), Expectorant (unspecified), Spice (unspecified), Tuberculosis (unspecified)
Human toxicity	-
Animal toxicity	-

Cultivation

Plants are grown by division. They can be grown from seed.

Mode	divisions seedlings
Germination duration (days)	-
Germination temperacture (C°)	-
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-29
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-