noun
red-root amaranth; redroot pigweed; common amaranth
A common weedy plant, Amaranthus retroflexus, also known as redroot pigweed or common tumbleweed.
道端にアオゲイトウがたくさん生えている。
A lot of red-root amaranth is growing by the roadside.
Katakana spelling is common for this plant name; usually written in kana.
Kanji spelling exists but is rarely used; the plant is normally written in kana.
The name アオゲイトウ literally means 'blue/green cockscomb', from 青 (blue/green) and 鶏頭 (cockscomb, Celosia), referring to the plant's resemblance to cockscomb but with greenish flowers. The exact derivation is uncertain.