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词条 Polyctenium fremontii
释义

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{{Italic title}}{{taxobox
|image = MDF_Polyctenium_fremontii_01.jpg
|regnum = Plantae
|unranked_divisio = Angiosperms
|unranked_classis = Eudicots
|unranked_ordo = Rosids
|ordo = Brassicales
|familia = Brassicaceae
|genus = Polyctenium
|species = P. fremontii
|binomial = Polyctenium fremontii
|binomial_authority = (S.Watson) Greene
|}}

Polyctenium fremontii, the desert combleaf, is named both in English and Greek for its deeply lobed leaves, which almost appear to be pinnately compound. It takes the other portion of its scientific name from John C. Frémont. It is a small and compact plant native to the western United States. Leaves have forked hairs, and the distal end of the leaf often has a single hair at the very tip. It is a member of the broccoli family, and the white flowers therefore have four petals in the shape of a cross. The flowers appear in clusters at the ends of the stems.

This plant is rather uncommon, but is among the first plants of sagebrush country in the inland western U.S. to bloom in spring. It is found on the banks of seasonal streams and similar places.

External links

{{Wikispecies}}
  • Jepson Manual Treatment of Polyctenium fremontii
  • USDA Plants Profile for Polyctenium fremontii (Desert combleaf)
  • Polyctenium fremontii — U.C. Photo gallery
{{commonscat|Polyctenium fremontii|position=left}}{{Taxonbar|from=Q7226252}}{{Brassicales-stub}}

10 : Brassicaceae|Flora of California|Flora of Idaho|Flora of Nevada|Flora of Oregon|Flora of the California desert regions|Flora of the Great Basin|John C. Frémont|Taxa named by Edward Lee Greene|Taxa named by Sereno Watson

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