Utricularia aurea Lour.-Bladderwort

 Utricularia aurea Lour., Fl. Cochinch. 1: 26 (1790).

Utricularia aurea Lour.; Photo Diep Dinh Quang

Vietnamese name: 

Nhĩ cán vàng, Rong ly vàng, Rong đuôi chồn 

Chinese name: 

黄花狸藻 huang hua li zao

English name: 

Bladderwort 

Latin name: 

Utricularia aurea Lour.

Family: 

Lentibulariaceae

Synonym name:

Utricularia blumei (A. DC.) Miq.

Utricularia calumpitensis Llanos

Utricularia confervifolia Jacks. ex D. Don

Utricularia extensa Hance

Utricularia flexuosa var. blumei A. DC.

Utricularia flexuosa f. gracilis Oliv.

Utricularia pilosa (Makino) Makino

Utricularia reclinata Hassk.

Utricularia vulgaris var. pilosa Makino

Description: 

Utricularia aurea is a large bladderwort that grows submersedly floating under the water surface in nature. This rootless plant forms very finely pinnate leaves, of a yellowish-green colour in the aquarium, in nature sometimes even of a dark intensive red. Its bladder traps remain rather small (1-2 mm) when the plant is kept in an aquarium, or miss altogether. The 15 to 25 cm long flowerstalks carry 3 to 7 bright yellow flowers and rise above the water surface.

Flower and fruid season: 

Fl. Jun-Nov, fr. Jul

Distribution: 

This species is distributed in the Asian tropics and in Australia, where it grows in shallow stagnant waters, also in rice paddies. In VietNam, found in Quảng Bình, Quảng Trị, Thừa Thiên Huế. 

Ecological: 

Aquatic grass, growing submerged in water, in ponds, lakes, lagoons, fields .. from sea level up to 2700m in altitude.

Uses: 

In VietNam:  Measles, acute conjunctivitis, quickly ruptures pustules (leaves). Reference: 

- theplantlist.org

- efloras.org

- ipni.org

- flowgrow.de