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Penthorum chinense2.jpg
Penthorum chinense
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Saxifragales
Family: Penthoraceae
Rydb. ex Britt.[1]
Genus: Penthorum

Penthorum chinense[2]
Penthorum sedoides[3]

Penthoraceae Distribution.svg
The range of Penthorum.

Penthorum is a genus of plants in the order Saxifragales. They are erect herbaceous perennials about half a meter tall. The genus consists of two species, one from east Asia and one from eastern North America.[2] It is variously classified in the family Saxifragaceae[2] or its own family Penthoraceae.[1][4] Its closest relatives may be in Haloragaceae.[2]


  1. ^ a b 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 2013-07-06. 
  2. ^ a b c d "Penthorum Linnaeus". Flora of China. 
  3. ^ "Penthorum sedoides L.". Flora of Missouri. 
  4. ^ "Penthoraceae Rydb. ex Britton, nom. cons.". Germplasm Resources Information Network.