| Family | Aizoaceae |
| Scientific name | Tetragonia tetragonioides (Pallas) Kuntze |
| Synonyms | Demidovia tetragonioides Pallas; Tetragonia cornuta Gaertner; Tetragonia expansa Murray; Tetragonia halimifolia G. Forster; Tetragonia japonica Thunberg; Tetragonia quadricornis Stokes |
| Common name | (Japanese common name) turu-na (ツルナ, 蔓菜 [meaning: vine salad green]) |
| (English common name) New Zealand spinach, warrigal cabbage | |
| Distribution | (Japan) Honshu (Izu Islands, Kii Peninsula), Okinawa |
| (Other nations) China, Taiwan, Philippines, Southeast Asia, Australia, New Zealand, Pacific islands, Argentina, Chile | |
| Habitat | Beach |
| Chromosomal number | 2n=32 |
| Description | Plants 40-80cm tall. Leaves 4-7cm long, 3-5cm wide, petioles 1-2cm long. Flowers yellow calyx tubes 3-4mm long, 9-16 stamens, 4-6 styles, flowering in June to September. Perennial plants. |
| Reference | Tetragonia tetragonioides (Pall.) Kuntze |
| Tetragonia tetragonioides (Pallas) Kuntze | |
| Tetragonia tetragonioides (Pall.) Kuntze | |
| Virus induced gene silencing in plants (US Patent 7012172/2006) | |
| Plant virus (WIPO Patent WO/2005/056583) | |
| Virus induced gene silencing in plants (European Patent EP1543129/2005) |
| June 2007 at Koishikawa Botanical Garden |
June 2007 at Koishikawa Botanical Garden |
June 2007 at Koishikawa Botanical Garden |
| May 2008 at Sanri-ga-hama Beach |
May 2008 at Sanri-ga-hama Beach |
May 2008 at Sanri-ga-hama Beach |
| May 2008 at Sanri-ga-hama Beach |