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(First upload on October 14 2015. Last on February 12 2019) [ 日本語 | English ]

Amaranthus L. (ヒユ) Hoso-aogeitou Himeshirobiyu (ホソアオゲイトウ, 細青鶏頭), slim amaranth (USDA), or smooth pigweed Lifeform: annual forb Distribution: South America (immigrated to Japan in Meiji Era) Hokkaido Blue List 2010: B Habitat: grasslands, crop fields, roadsides, etc.

Synonyms: Amaranthus patulus Bertol. Amaranthus hybridus L. ssp. hypochondriacus (L.) Thell. var. erythrostachys auct. non Thell. Amaranthus hybridus L. ssp. cruentus (L.) Thell. var. patulus (Bertol.) Thell.

Amaranthus hybridus in Hokkaido

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1 2 3
4 5
[1-3] under a street tree at N20/W3, East Ward, Sapporo, on August 11 2015. [4-6] in an openland, N13/W4, North Ward, Sapporo, on November 21 2018. Records: near Date-Monbetsu JR Station, Date City, on September 19 2020.