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Lemna trisulca L.
Family Araceae
Lemna trisulca L. APNI*

Description: Herb suspended below water surface, except when flowering or fruiting; roots absent.

Thallus narrow-ovate to narrow-oblong, thin and translucent greenish; veins not visible, midvein sometimes indistinct; base narrowed to a distinct stalk 1–13 mm long; apex obtuse to oblique-truncate or broad-emarginate and slightly irregular or minutely toothed.

Colony made up of generations at 90° to the previous one.


Flowering: not recorded in Aust.

Distribution and occurrence: Grows in or at the edge of fast flowing freshwater in mud or attached to rocks; west to Burrinjuck Dam area.
NSW subdivisions: NC, NT, ST, CWS, SWS
Other Australian states: Qld Vic. Tas. W.A.
AVH map***

Lemna was formerly placed in family Lemnaceae.

Text by B.J. Conn, Flora of NSW 4 (1993)
Taxon concept: Australian Plant Census (accessed May 2017)


APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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