Plants of South Eastern New South Wales

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Utricularia australis

Common name

Yellow bladderwort

Family

Lentibulariaceae

Where found

In still or slowly flowing water. Coastal. Rarely elsewhere.

Notes

Suspended aquatic perennial herb with branched threadlike stems to 0.5 m long, stoloniferous. Insect traps on the stems. Leaves alternating up the stems, 1.5–4 cm long, divided from the base into 2 approximately equal very narrow segments, these again repeatedly divided, the ultimate segments numerous (20–80). Flowers yellow with reddish-brown lines and spots on the lower lip, 12–20 mm long, 2-lipped, the upper lip broad-oval, the lower lip much larger, kidney-shaped or transversely elliptic. Flowers emergent, in 4–10 flowered clusters about 10–30 cm long. Flowers Nov.–Apr.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Utricularia~australis (accessed 10 February, 2021)