Common name: Waterwheel Plant, Waterbug Trap
Aldrovanda vesiculosa L. APNI* 
Description: Small herb usually 5–20 cm long, 10–20 mm diam.
including leaves.
Leaves with lamina 2–4 mm long, 2–6 mm wide, bristles 4–8, 2–6 mm long; petiole 2–6 mm long, 1–2 mm wide. Peduncles 5–15 mm long. Sepals 2–4 mm long, 1–1.5 mm wide. Petals 4–5 mm long, c. 2.5 mm wide, white or pinkish. Staminal filaments 3–4 mm long.
Capsule subglobose, 4 mm long, 3 mm wide.
Flowering: summer.
Distribution and occurrence: Grows in shallow fresh water, often caught on submerged vegetation; widespread, but rare in N.S.W.
NSW subdivisions: NC, SC, NT
Other Australian states: Qld W.A.
Threatened species: NSW BCA: Endangered
Text by G. J. Harden (1990); edited KL Wilson (Feb 2021)
Taxon concept: Flora of NSW 1 (1990)
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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