(First upload on December 23 2007. Last on July 18 2021) [ 日本語 | English ]

Gynostemma pentaphyllum (Thunb.) Makino

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Gynostemma Blume (アマチャヅル)
Over 19 species, native to easern Asia
One species in Japan
Ama·cha·zuru (アマチャヅル, 甘茶蔓), sweet tea vine

ama = sweet, cha = tea, zuru = vine

Distribution: Japan (from Hokkaido to Ryukyu), Korea, China, Malaysia, India
Habitat: grasslands, forest edges, and gaps

HUSTEP: Plants and Plant communities in Japan (flora list)

Leaf: 3-5 leaflets ↔ Schizopepon bryoniifolius = simple

sparse hair on the face ↔ Cayratia japonica (ヤブガラシ)

Use: medicine, because of containing saponin
var. maritimum Kitam. (ソナレアマチャヅル), seacoasts in Kouchi Prefecture
f. simplicifolium (Blume) W.J. de Wilde et Duyfjes (ナンゴクアマチャヅル)

Gynostemma pentaphyllum in Hokkaido

[1] in Hokkaido University Campus on September 19 2007. [2/3] near a transplanted forest of Fraxinus mandshurica in the Experimental Forest of the University of Tokyo, Furano, central Hokkaido, on June 28 2017. [4] in the Uryu Experimenta Forest of Hokkaido University, used for a field training, northern Japan, on June 25 2018. [5] near the experimental farm of Hokkaido University on September 8 2018, just after a huge earthquake, when the tree damages by typhoon was investigated. [6] along O-sawa Course in Nopporo Forest Park, Sapporo, on July 17 2021.