生活型

herb

形態特徵

• Thalli submersed except at anthesis, narrowly deltoid to obovate, elongate, asymmetrical, many connected by a long stipe in elongate chains, 6-20 mm long, 2-3 mm wide, obscurely 1-veined, base truncate, apex minutely serrate, slightly curved; root 1, sometimes absent.
• Reproductive parts unknown.

分布

• 台灣 : in ponds in the north and south.
• 世界 : Java and the Philippines to Japan.

引證標本

ILAN: Ilan, Yang 213.

參考文獻

• YANG, Yuen-Po, Flora of Taiwan, second edition 5: 695. 2000.  (Fl. Taiwan 2nd edit.)