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Humulus scandens (Lour.) Merr.

Houblon du Japon (fr)

Species

Angiosperms > Rosales > Cannabaceae > Humulus

Characteristics

Plants annual. Petiole 5-10 cm; leaf blade palmately (3 or)5-9-lobed, sometimes simple, 7-10 × 7-10 cm, papery, abaxially with rigid spinulose hairs on veins, adaxially pubescent but not densely so, base cordate; lobes ovate-triangular, margin serrate. Male inflorescences 15-25 cm. Male flowers: yellowish green. Female inflorescences ca. 0.5 in diam.; bracts ovoid, 7-10 mm, papery, spinulose, apex acuminate. Female flowers: 1 per bract inflorescence; ovary included by bracts; styles exerted from bracts. Infructescences 0.5-1.5(-2) cm. Achenes exerted from bracts when mature. Fl. spring to summer, fr. autumn.
More
A climber. It climbs 6 m high. The stems have prickles that curve backwards. The leaves are alternate and have leaf stalks 6-14 cm long. The leaves are like fingers on a hand. They have 5-7 lobes. The leaves are 5-12 cm across. Plants are separately male and female. The male flowers are small and yellow in groups 10-17 cm long. The female flowers are in heads. The fruit is a compressed nutlet 5 mm long and across.
Life form annual
Growth form herb
Growth support climber
Foliage retention -
Sexuality dioecy
Pollination anemogamy
Spread -
Mature width (meter) -
Mature height (meter) 6.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It grows in warm temperate areas. In Yunnan.
Light 4-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-8

Usage

The leaves and shoots are eaten at a potherb.
Uses environmental use flavouring gene source material medicinal oil potherb
Edible flowers leaves shoots
Therapeutic use Diuretic (unspecified), Dysentery (unspecified), Emission(Nocturnal) (unspecified), Fever (unspecified), Flux (unspecified), Lithiasis (unspecified), Tonic (unspecified), Typhoid (unspecified), Malaria (unspecified), Urogenital (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, divisions or seedlings.
Mode cuttings divisions seedlings
Germination duration (days) 16 - 22
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Humulus scandens habit picture by Trap Hers (cc-by-sa)

Distribution

Humulus scandens world distribution map, present in Argentina, Austria, Brazil, Canada, China, Germany, Denmark, France, United Kingdom of Great Britain and Northern Ireland, Croatia, Hungary, Italy, Japan, Poland, Korea (Democratic People's Republic of), Romania, Serbia, Slovenia, Sweden, Taiwan, Province of China, Ukraine, United States of America, Uzbekistan, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:584308-1
WFO ID wfo-0000725872
COL ID 6MFNV
BDTFX ID 34955
INPN ID 103032
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Antidesma scandens Humulus scandens Humulus aculeatus Humulus japonicus Humulus japonicus var. variegatus Humulus scandens var. variegatus
WorldFloraDB 2024