Rubiaceae

Ophiorrhiza japonica Blume

Family: Rubiaceae
Genus: Ophiorrhiza

Pet and kid safety: not checked yet. Check pet-safe plants

Ophiorrhiza japonica (Ophiorrhiza japonica) — FlowerPhoto: 黃美滿, CC BY 4.0, from iNaturalist

Is yours looking unwell? Scan your plant — free

Common names

By language (2)

Chinese: 日本蛇根草, 变黑蛇根草, 散血草, 日本蛇根草（蛇根草）, 猪菜, 蛇根草
nan: Choâ-kin-chháu, Choâ-kin-chhaú

Synonyms

Ophiorrhiza acutiloba Hayata
Ophiorrhiza cavaleriei H.Lév.
Ophiorrhiza dimorphantha Hayata
Ophiorrhiza dimorphantha f. brevistigma Hayata
Ophiorrhiza dimorphantha f. longistigma Hayata
Ophiorrhiza eryei Champ.
Ophiorrhiza japonica f. plena T.Yamaz.
Ophiorrhiza japonica var. acutiloba (Hayata) Ohwi
Ophiorrhiza japonica var. amamiana Hatus.
Ophiorrhiza japonica var. minor E.H.L.Krause
Ophiorrhiza japonica var. tashiroi (Maxim.) Ohwi
Ophiorrhiza labordei H.Lév.
Ophiorrhiza monticola Hayata
Ophiorrhiza monticola f. brevistigma Hayata
Ophiorrhiza monticola f. longistigma Hayata
Ophiorrhiza nigricans H.S.Lo
Ophiorrhiza tashiroi Maxim.

Flowers

In flower: January to April, October to November (from 318 flowering iNaturalist observations worldwide)

Photos

FlowerPhoto: 黃美滿, CC BY 4.0, from iNaturalist
FlowerPhoto: Tim, CC BY 4.0, from iNaturalist
FlowerPhoto: 呂一起(Lyu yi-chi), CC BY 4.0, from iNaturalist
FlowerPhoto: chiuluan, CC BY 4.0, from iNaturalist
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons
Photo: Moogoo Lee, CC BY 4.0, from iNaturalist
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons
Photo: 葉子, CC0, from iNaturalist
Photo: 呂一起(Lyu yi-chi), CC BY 4.0, from iNaturalist
Photo: 葉子, CC0, from iNaturalist
Photo: Cheng-Tao Lin, CC BY 4.0, from iNaturalist
Photo: 葉子, CC0, from iNaturalist

More in Ophiorrhiza

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.