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词汇 polygonum
释义

Definition of polygonum in English:

polygonum

noun pəˈlɪɡ(ə)nəmpəˈliɡənəm
  • A plant of a genus that includes knotgrass and knotweed, some of which are weeds and some are garden ornamentals.

    蓼属植物

    Genus Polygonum, family Polygonaceae

    Example sentencesExamples
    • The Scotts Valley polygonum, a small annual in the buckwheat family, has linear-shaped leaves and produces white flowers.
    • ‘I love how it grows into the polygonum,’ Julie says.
    • Also on February 15, 310 acres in Santa Cruz County were proposed as critical habitat for the Scotts Valley spineflower (Chorizanthe robusta var. hartwegii) and the Scotts Valley polygonum.
    • Most of the starchy grains that are present at Langford sites are either wild chenopod or polygonum seeds.
    • The Scotts Valley polygonum, which is native to Santa Cruz County, California, produces white flowers and reaches a height of only two inches (five centimeters).

Origin

Modern Latin, from Greek polu- 'many' + gonu 'knee, joint' (because of the swollen joints sheathed by stipules).

Rhymes

origanum

Definition of polygonum in US English:

polygonum

nounpəˈliɡənəm
  • A plant of a genus that includes knotgrass and knotweed, some of which are weeds and some are garden ornamentals.

    蓼属植物

    Genus Polygonum, family Polygonaceae

    Example sentencesExamples
    • The Scotts Valley polygonum, which is native to Santa Cruz County, California, produces white flowers and reaches a height of only two inches (five centimeters).
    • ‘I love how it grows into the polygonum,’ Julie says.
    • Most of the starchy grains that are present at Langford sites are either wild chenopod or polygonum seeds.
    • Also on February 15, 310 acres in Santa Cruz County were proposed as critical habitat for the Scotts Valley spineflower (Chorizanthe robusta var. hartwegii) and the Scotts Valley polygonum.
    • The Scotts Valley polygonum, a small annual in the buckwheat family, has linear-shaped leaves and produces white flowers.

Origin

Modern Latin, from Greek polu- ‘many’ + gonu ‘knee, joint’ (because of the swollen joints sheathed by stipules).

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