Australian Tropical Rainforest Plants - Online edition

Fatoua villosa (Murray) Nakai


Herb (herbaceous or woody, under 1 m tall)
Click/tap on images to enlarge
Inflorescence. © R.L. Barrett
Inflorescence. © R.L. Barrett
Habit and leaves. © R.L. Barrett
Habit, leaves, flowers and fruit. © R.L. Barrett
Herbarium specimen. © DERM
Family

Nakai, T. (1927) Botanical Magazine (Tokyo) 41: 516.

Common name

Hairy crabweed; Crabweed, Hairy

Stem

Herb or subshrub up to 1 m tall, leafy stems clothed in hairs. Leafy stems 0.5-2 mm thick, minutely puberulous and with longer hairs.

Leaves

Leaves distichous; lamina cordiform to ovate, 10-45 x 10-40 mm, membranous, upper surface hispidulous to puberulous, scabrous to smooth; lower surface minutely puberulous; petioles 7-45 mm long, usually much larger than the leaf blades.

Flowers

Inflorescences subcapitate, 0.3-1 cm diam.; peduncle 0.5-2.5 cm long, minutely puberulous. Staminate flowers with tepals ca. 1 mm long, puberulous, stamens ca. 1.5 mm long; pistillate flowers with tepals ca. 1 mm long, style 2-3 mm long.

Fruit

Endocarp body ca. 0.8 x 0.6 mm.

Seedlings

Features not available.

Distribution and Ecology

Occurs in WA, NT and in CYP on islands of the Torres Strait. Cultivated and escaped plants are recorded from near Brisbane. Altitudinal range from near sea level to 45 m. Grows in forest margins and in vine thickets, often on calcareous soils. Also from Japan, Thailand, Indochina, Melanesia and the Pacific Islands.

Natural History & Notes

This species is very variable with regard to habit, indumentum (hairs), and leaves.

Synonyms
Urtica villosa Murray, Systema Vegetabilium Edn. 14 : 851(1784). Fatoua pilosa Gaudich., Voyage Autour du Monde .. sur les Corvettes de S.M. l'Uranie et la Physicienne. Botanique 12: 509(1830), Type: Moluccas.
RFK Code
4070
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