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(Upload on February 23 2016) [ 日本語 | English ]

Tetragonia L. (ツルナ) One species recorded from Japan Tetragonia tetragonoides (Pall.) Kuntze Tsuruna (ツルナ, 蔓菜), New Zealand spinach or warrigal cabbage Hamachisya (ハマチシャ, 浜萬苣) Lifeform: succulent, perennial forb Distribution: widespread between tropical and temperate regions on the Pacific coast (Asia, Oceania and south America), including south to the southwestern Hokkaido of Japan

Habitat: sandy coast Seed dispersal: (sea-)water Chromosome number: 2n = 32 Use: vegetable, groundcover Synonyms: Tetragonia expansa Murray

Tetragonia tetragonoides in Japan

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[1-3] in Oi Pier Seaside Park, faced to Keihin Canal, Tokyo, on December 26 2015.

Tetragonia decumbens in Western Australia

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Tetragonia L. (ツルナ) Umihourensou (ウミホウレンソウ, 海法蓮草), sea spinach (WA) or dune spinach (SA) Lifeform: perennial forb (trailing undershrub)

Distribution: originally in South Africa (now widespread in Wesern Australia and other regions

Habitat: sand dunes, sea coasts, etc. Use: gardening

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[1/2] in the Kings Park Botanic Garden, Perth, on September 27 2003.