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Damasonium minus

Damasonium minus
Photo: MargaretRDonald, CC BY-SA 4.0

Damasonium minus is an Australian aquatic annual or short-lived perennial in the water-plantain family, best known as a serious weed of rice crops. It grows in shallow water or wet mud and is not a garden ornamental.

Family
Alismataceae (Alismat family)
Grows as
Aquatic, Annual, Perennial
Light
Full sun
Water
Grows submerged or emergent in shallow water or saturated mud; keep the root zone permanently wet.
Soil
Wet mud or silt at the bottom of shallow water.
Temperature
Subtropical conditions; frost-sensitive, so protect from freezing.
Native range
S. & E. Australia
Climate
subtropical

About

Damasonium minus is a species of flowering plant in the water-plantain family known by the common names starfruit and star-fruit (not to be confused with the cultivated starfruit). It is native to Australia, where it occurs everywhere except the Northern Territory. It is perhaps best known as an agricultural weed. It is a major weed of Australian rice crops.

This species is an emergent aquatic plant. It is an annual or short-lived perennial herb growing up to a meter tall. The floating or emergent leaves have blades up to 10 centimeters long by 4 wide and lance-shaped to heart-shaped. They are borne on petioles up to 30 centimeters long. The branching inflorescence has whorls of flowers. Each flower has tiny green sepals and white or pink petals a few millimeters long. The star-shaped aggregate fruit is made up of follicles containing seeds.

Other Damasonium plants

Starfruit · California damsonium · Starfruit

Text excerpted from the Wikipedia article Damasonium minus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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