Helwingia

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Helwingiaceae
Helwingia japonica m.jpg
Helwingia japonica var. japonica
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Aquifoliales
Family: Helwingiaceae
Decne.[1]
Genus: Helwingia
Species

Helwingia chinensis[2]
Helwingia himalaica[2]
Helwingia japonica[2]
Helwingia omeiensis[2]

The genus Helwingia consists of 2-5 species of shrubs native to Asia. It is the only genus in the family Helwingiaceae.[3]

The plants have alternate leaves and small inflorescences which are epiphyllous (growing from the leaves). They are from temperate regions of eastern Asia: for example China, Nepal, and Japan.

The APG II classification (2003) places them in the order Aquifoliales, along with the hollies and Phyllonomaceae.

The family Helwingiaceae does not exist in the Cronquist classification (1981), which places this genus in the Cornaceae (dogwood family).

References[edit]

  1. ^ Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. Retrieved 2013-06-26. 
  2. ^ a b c d Helwingia, Flora of China, consulted 2008-04-30
  3. ^ Helwingiaceae, Flora of China, consulted 2007-01-26

External links[edit]

  • Aquifoliales - Angiosperm Phylogeny Website, consulted 2007-01-26.
  • Helwingiaceae, Watson, L., and Dallwitz, M.J. 1992 onwards. The families of flowering plants: descriptions, illustrations, identification, and information retrieval. Version: 29 July 2006.
  • Helwingiaceae from NCBI-Taxonomy
  • Helwingiaceae, USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN Online Database). National Germplasm Resources Laboratory, Beltsville, Maryland. Consulted 2007-01-26.