| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Pogostemonoideae |
| Scientific name | Pogostemon stellatus (Loureiro) Kuntze |
| Synonyms | Dysophylla benthamiana Hance; Dysophylla benthamiana Hance var. hainanensis C. Y. Wu & Hsuan; Dysophylla benthamiana Hance var. intermedia C. Y. Wu & Hsuan; Dysophylla esquirolii H. Léveillé; D. japonica Miquel; Dysophylla japonica Miquel; Dysophylla stellata (Loureiro) Bentham; Dysophylla stellata (Loureiro) Bentham var. hainanensis (C. Y. Wu & Hsuan) C. Y. Wu & H. W. Li; Dysophylla stellata (Loureiro) Bentham var. intermedia (C. Y. Wu & Hsuan) C. Y. Wu & H. W. Li; Dysophylla verticillata (Roxburgh) Bentham; Eusteralis pumila Rafinesque-Schmaltz; Eusteralis stellata (Loureiro) Panigrahi & Murata; Mentha stellata Loureiro; Mentha verticillata Roxburgh; Pogostemon benthamianus Kuntze; Pogostemon verticillatus Miquel |
| Common name | (Japanese common name) mizu-neko-no-o (ミズネコノオ, 水猫尾 [meaning: water cats tail]) |
| (English common name) Australian hygro | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China, Taiwan, Vietnam, Thailand, Cambodia, Laos, Malaysia, Indonesia, Australia, Bangladesh, Bhutan, India | |
| Habitat | Swamp, rice paddy |
| Chromosomal number | unknown |
| Description | Plants 15-50cm tall. Leaves 4-6 veriticillate, leaflets each 2-6cm long, 2-4mm wide. Flowers inflorescences ca. 2-5cm long, calyxs 1.5mm long, white corollas ca. 2mm long, flowering in August to October. Fruits ca. 0.6mm long. Annual plants. |
| Reference | Dysophylla stellata (Loureiro) Bentham |
| 5-Hydroxy indazole derivatives for treating glaucoma (US Patent 7005443/2006) | |
| Note | Rare species. |
| September 2005 at Ushiku Forest Park |
October 2006 at rice paddy |
October 2006 at rice paddy |