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| June 2007 at Ushiku Forest Park |
| Family | Nymphaeaeceae |
| Scientific name | Brasenia schreberi J. F. Gmelin |
| Synonyms | Brasenia hydropeltis Muhlenberg ex Rafinesque; Brasenia nymphoides Baillon; Brasenia peltata Pursh; Brasenia purpurea (Michaux) Caspary; Hydropeltis pulla Salisbury; Hydropeltis purpurea Michaux; Limnanthemum peltatum (Thunberg) Grisebach; Menyanthes peltata Thunberg |
| Common name | (Japanese common name) junsai (ジュンサイ, 蓴菜 [meaning: Japanese pronunciation of Chinese common name]) |
| (English common name) watershield, watertarget | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Russia (Far East), Korea, China, Taiwan, Australia, India, Kenya, Tanzania, Uganda, Burundi, Zaire, Angola, Zambia, Botswana, South Africa, Canada, USA, Cuba, Jamaica, Belize, Guatemala, Guyana, Venezuela | |
| Habitat | Pond, lake, swamp |
| Chromosomal number | 2n=72, 80 |
| Description | Leaves 4-10cm length. Flowers purple petals 12-14mm, flowering in May to August. Water plants. Perennial plants. |
| Reference | Brasenia schreberi J. F. Gmelin |
| Brasenia schreberi J. F. Gmel. | |
| Brasenia schreberi J.F.Gmel. | |
| Synergistic herbicidal compositions comprising colletotrichum truncatum and chemical herbicides (US Patent 4775405/1988) | |
| Method for inhibiting infection of human T-cells (US Patent 4840941/1989) | |
| Method of topically cleansing the human body (US Patent 5100879/1992) | |
| Cultured plant cell gums for food, pharmaceutical, cosmetic and industrial applications (US Patent 6271001/2001) | |
| Cultured plant cell gums for food, pharmaceutical, cosmetic and industrial applications (US Patent 6350594/2002) | |
| Supported fluridone compositions and methods (US Patent 6686317/2004) | |
| Transgenic expression of a phytochrome a gene (US Patent 7271004/2007) | |
| Integrated methods for control of aquatic weeds (US Patent 20020119891) |
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| June 2007 at Ushiku Forest Park |
