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单词 helenium
释义

Helenium


helenium

(həˈliːnɪəm) n (Plants) any plant of the American genus Helenium, up to 1.6 m (5 ft) tall, some species of which are grown as border plants for their daisy-like yellow or variegated flowers: family Asteraceae[New Latin, from Greek helenion, a plant name]
Thesaurus
Noun1.helenium - genus of American herbs with flowers having yellow rays: sneezeweedsHelenium - genus of American herbs with flowers having yellow rays: sneezeweedsgenus Heleniumasterid 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; zinniasneezeweed - any of various plants of the genus Helenium characteristically causing sneezing

Helenium


Helenium

 

a genus of annual or perennial herbaceous plants of the family Compositae. There are about 40 species in North and Central America, primarily in the western United States. Many species are ornamentals. H. autumnale, a perennial plant with large flower heads in corymbose clusters, is used extensively in horticulture. Horticultural forms and varieties of hybrid origin are joined under the name H. hybridium. They vary in height and are distinguished by the color of their flower clusters, which are combinations of yellow, brown, and a reddish purple tint. Helenium blooms in the second half of the summer and in the autumn.

Helenium


  • noun

Synonyms for Helenium

noun genus of American herbs with flowers having yellow rays: sneezeweeds

Synonyms

  • genus Helenium

Related Words

  • asterid dicot genus
  • aster family
  • Asteraceae
  • Compositae
  • family Asteraceae
  • family Compositae
  • sneezeweed
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更新时间:2024/12/22 13:34:20