| Family | Urticaceae |
| Scientific name | Pilea peploides (Gaudichaud-Beaupré) Hooker & Arnott |
| Synonyms | Dubrueilia peploides Gaudichaud-Beaupré; Pilea peploides (Gaudichaud-Beaupré) Hooker & Arnott var. major Weddell |
| Common name | (Japanese common name) koke-mizu (コケミズ, 苔ミズ [meaning: moss mizu (mizu = water plants)]) |
| (English common name) Pacific Island clearweed | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) Russia (Siberia),Korea, China, Taiwan, Pacific Islands (Hawaii), Ecuador (Galapagos Islands), Vietnam; Thailand, Indonesia, Myanmar, Bhutan, India | |
| Habitat | Wet forest edge, swamp |
| Chromosomal number | unknown |
| Description | Plants 5-10cm tall. Leaves 5-9mm long. Flowers pale green, flowering in March to December. Annual plants. |
| Reference | Pilea peploides (Gaudichaud-Beaupré) W. J. Hooker & Arnott |
| June 2008 at Koishikawa Botanical Garden |
June 2008 at Koishikawa Botanical Garden |
June 2008 at Koishikawa Botanical Garden |
| June 2008 at Koishikawa Botanical Garden |
June 2008 at Koishikawa Botanical Garden |
June 2008 at Koishikawa Botanical Garden |