Chenopodium giganteum D. Don 1825

Jonsell, B., Karlsson, 2005, Chenopodiaceae - Fumariaceae (Chenopodium), Flora Nordica 2, pp. 4-31: 29

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Chenopodium giganteum D. Don 1825


Chenopodium giganteum D. Don 1825  

( C. amaranticolor (H.J. Coste & A. Reyn.) H.J. Coste & A. Reyn. 1907).  

F jättisavikka. N kjempemelde. S praktmålla.

- Similar to C. album   (15) but up to 2 m, and young parts of the plant usually covered with purple vesicular hairs (may fade in dry material). Leaf-blades (when fully developed) broadly triangular, often wider than long, up to 16 x 18 cm, dentate; apex and base rounded; teeth fairly equal in size. Inflorescence usually spike-like; glomerules fairly small. - Flowering late in autumn or not at all; seeds not formed in Norden. - [2n=54]

Mills, tips, gardens, poultry farms, railway areas; most records fairly recent. D NJy Fredrikshavn 1963, ØJy �rhus 1975, Sjæ Kastrup 1961, København 1987, Slagelse 1964. N Ak Oslo 1969, Ho Radøy 1969. S Sk Lackalänga 1925, BhG Göteborg several records 1948-57, Srm Nacka 1932. F EH Nokia 1974, Tampere 1975, 1978 and 1980 (mill). - India; grown for ornament and locally naturalized in the Mediterranean and on the Canary Islands.