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Homonoia riparia Lour.

Willow-leaved water croton (en)

Species

Angiosperms > Malpighiales > Euphorbiaceae > Homonoia

Characteristics

Shrubs, 1-3 m tall. Branchlets pubescent. Stipules subulate, 5-8 mm; petiole 5-15 mm; leaf blade linear-oblong or narrowly lanceolate, 6-20 × 1.2-2.5 cm, papery, abaxially densely scaly, pubescent, base cuneate or obtuse, margin entire or sparsely glandular-serrulate, apex acuminate. Inflorescences 5-10 cm, puberulent; bracts subovate, 1.5-2 mm. Male flowers: pedicel ca. 0.2 mm; calyx 3-lobed, 3-4 mm, pubescent. Female flowers: sepals 5, oblong, acuminate, 1-2 mm, pubescent; ovary puberulent; style 4-7 mm, base connate. Capsule subglobose, 3-4 mm in diam., pubescent. Fl. Mar-May, fr. Apr-Jul.
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A small shrub up to 1-3 m high. The twigs are round and with small raised pores. The young tips are covered with soft downy hairs. The leaves are long very numerous and hang down. They are 5-10 cm long by 2-12 cm wide. The leaves are entire and with glands underneath. The flower spikes also hang down and are shorter than the leaves. The male flowers become hairless at maturity and the female flowers have large bracts which taper to a point. The fruit capsules are round, attached directly without a stalk, surrounded by bracts and burst open.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality dioecy
Pollination anemogamy
Spread -
Mature width (meter) -
Mature height (meter) 2.5 - 3.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Restricted to river banks, lake shores and rocky stream beds. It is found under ever-wet and seasonal climatic condition, preferring exposed sunny sites on stream banks and in stream beds in not too deep or too swift streams.
More
A tropical plant. They are common in river beds throughout the Philippines. It is often in sandy conditions. In southern China it grows below 1,000 m above sea level. In Sichuan and Yunnan.
Light -
Soil humidity 10-12
Soil texture 3-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The young leaf tips are cooked and eaten as a vegetable.
Uses dye environmental use forage fuel material medicinal oil wood
Edible leaves roots
Therapeutic use Parasympatholytics (aerial part), Chest pain (bark), Dizziness (bark), Hemorrhage (bark), Skin diseases (bark), Anti-infective agents, local (fruit), Skin diseases (fruit), Ulcer (fruit), Wounds and injuries (fruit), Muscular injury (leaf), Anti-infective agents, local (leaf), Hemorrhoids (leaf), Skin diseases (leaf), Thrombosis (leaf), Ulcer (leaf), Wounds and injuries (leaf), Depurative (leaf), Chest pain (root), Diuretics (root), Emetics (root), Gonorrhea (root), Hemorrhage (root), Hemorrhoids (root), Kidney diseases (root), Laxatives (root), Lithiasis (root), Malaria (root), Pain (root), Parasympatholytics (root), Syphilis (root), Toothache (root), Ulcer (root), Urinary bladder calculi (root), Urinary bladder diseases (root), Urination disorders (root), Urogenital system (root), Urolithiasis (root), Urethral discharge (root), Dermatosis (unspecified), Diuretic (unspecified), Eruption (unspecified), Malaria (unspecified), Skin (unspecified), Toothblack (unspecified), Teeth (unspecified), Laxative (unspecified), Malaria (wood)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Homonoia riparia unspecified picture

Distribution

Homonoia riparia world distribution map, present in Andorra, Bangladesh, China, Indonesia, Cambodia, Lao People's Democratic Republic, Sri Lanka, Moldova (Republic of), Myanmar, Philippines, Thailand, Taiwan, Province of China, United States of America, and Viet Nam

Conservation status

Homonoia riparia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:350055-1
WFO ID wfo-0000214976
COL ID 6MCQM
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Ricinus salicinus Homonoia riparia Adelia neriifolia Lumanaja juviatilis Haematospermum salicinum Croton salicifolius Haematospermum neriifolium Spathiostemon salicinus Spathiostemon salicinus var. angustifolius
WorldFloraDB 2024