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Houttuynia
Also called Tracheophytes
Houttuynia is a genus of two species native to Southeast Asia in the family Saururaceae. One species, H. cordata, is widely cultivated as a culinary herb. The genus was originally described in 1783 by Carl Peter Thunberg when he formally described H. cordata as the only species. It remained a monotypic genus until 2001 when Zheng Yin Zhu and Shi Liang Zhang discovered and described a second species native to China, H. emeiensis but its validity is still unestablished. The genus was named after Dutch naturalist Martinus Houttuyn.
Text excerpted from the Wikipedia article Houttuynia by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
