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单词 bidens
释义

Bidens


Thesaurus
Noun1.Bidens - bur marigoldsBidens - bur marigolds genus Bidensasterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubsaster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinniabeggar's-ticks, bur marigold, burr marigold, sticktight, beggar-ticks - any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

Bidens


Bidens

 

(beggar-ticks, bur marigold, or sticktight), a genus of annual or perennial herbs of the family Compositae. The opposite leaves vary from entire to pinnatisect. The disk flowers are bisexual; sometimes there are infertile ray flowers. The flowers are in heads generally borne singly on the apices of the stem and the branches. The fruit is an achene, with two to four retrosely barbed bristles on the apex.

There are more than 200 species, which are distributed worldwide but mainly in the Americas. The USSR has eight species. B. tripartita grows along bodies of water marshes, ditches, moist wastelands, gardens, and fields. The plant sometimes forms a dense cover. It contains essential oil; mucilaginous, bitter, and tannic substances; carotene; and vitamin C. In folk medicine the leaves and stem apices are used in baths to heal various diatheses with rashes; the herb is also used in an antiscrofulous mixture.

REFERENCES

Atlas lekarstvennykh rastenii SSSR. Moscow, 1962.
Kotukov, G. N. Kul’tiviruemye i dikorastushchie lekarstvennye rasteniia: Spravochnik. Kiev, 1974. (Translated from Ukrainian.)

See Bidens

Bidens


  • noun

Synonyms for Bidens

noun bur marigolds

Synonyms

  • genus Bidens

Related Words

  • asterid dicot genus
  • aster family
  • Asteraceae
  • Compositae
  • family Asteraceae
  • family Compositae
  • beggar's-ticks
  • bur marigold
  • burr marigold
  • sticktight
  • beggar-ticks
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更新时间:2024/12/23 8:06:30