Harrisia (applecactus[1] and moonlight cactus[2][3]) is a genus of night blooming cacti native to Argentina, Paraguay, Brazil, Bolivia, Uruguay, the Greater Antilles, the Bahamas, and the U.S. state of Florida. The genus is named after William Harris, an important botanist of Jamaica. There are about 20 species.[4]

The Cactaceae Vol II, plate XX filtered.jpg
Harrisia gracilis and Harrisia martinii
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Trichocereeae
Genus: Harrisia

20, see text

Harrisia cactus is an exotic invasive in Australia,[2][5] Africa, and the U.S. state of Hawaii.

The genera Eriocereus (A.Berger) Riccob. and Roseocereus Backeb. have been brought into synonymy with this genus.[5]

Species include:


  1. ^ "Harrisia". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 10 May 2015.
  2. ^ a b c d e "Harrisia cactus" (PDF). Biosecurity Queensland. The State of Queensland, Department of Agriculture, Fisheries and Forestry. 2013. Retrieved 23 February 2017.
  3. ^ "Harrisia Cactus". HerbiGuide. Retrieved 23 February 2017.
  4. ^ Flora of North America
  5. ^ a b Department of Agriculture, Fisheries and Forestry: Biosecurity Queensland (1 January 2016). "Prohibited invasive plants: Harrisia cactus". Business Queensland. Queensland Government. Retrieved 20 February 2017.