Tsuga

Tsuga (/ˈsɡə/, from Japanese (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock. Unlike the latter, Tsuga species are not poisonous.

Tsuga
Tsuga heterophylla
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Subfamily: Abietoideae
Genus: Tsuga
(Endlicher) Carrière
Synonyms
  • Pinus sect. Tsuga Endlicher
  • Hesperopeuce (Engelmann) Lemmon
  • ×Hesperotsuga C.N.Page
  • Micropeuce (Spach) Gordon
  • ×Tsugo-picea Van Campo & Gaussen
  • ×Tsugo-piceo-picea Van Campo & Gaussen
  • ×Tsugo-piceo-tsuga Van Campo & Gaussen

The genus comprises eight to ten species (depending on the authority), with four species occurring in North America and four to six in eastern Asia.

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