| Family | Plantaginaceae (also placed in Scrophulariaceae) |
| Tribe | Gratioleae |
| Scientific name | Gratiola japonica Miquel |
| Synonyms | Gratiola micrantha Franchet & Savatier |
| Common name | (Japanese common name) oh-abu-no-me (オオアブノメ, 大虻の目 [meaning: large horsefly's eyes]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (south of Miyagi Prefecture), Kyushu |
| (Other nations) Russia, Korea, China | |
| Habitat | Swamp |
| Chromosomal number | unknown |
| Description | Plants electing 10-20cm tall. Leaves 1-3cm long, 2.5-7mm wide. Flowers white corollas ca. 4-5mm long, flowering in May to June. Fruits 3-4mm long. Annual plants. |
| Reference | Gratiola japonica Miquel |
| Gratiola japonica Miq. | |
| Phylogenetic Relationships of the Monotypic Genus Amphianthus (Plantaginaceae Tribe Gratioleae) Inferred from Chloroplast DNA Sequences | |
| Substituted benzyl-thiolcarbamic acid esters (US Patent 3917616/1975) | |
| Note | Rare species. |
| June 2009 at Ohsaka City University Botanical Garden |
June 2009 at Ohsaka City University Botanical Garden |
June 2009 at Ohsaka City University Botanical Garden |
| June 2009 at Ohsaka City University Botanical Garden |