Harrisia (plant)

Short description: Genus of cacti

Harrisia

Harrisia gracilis and Harrisia martinii
Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Eudicots
Order:  | Caryophyllales
Family:  | Cactaceae
Subfamily:  | Cactoideae
Tribe:  | Cereeae
Subtribe:  | Trichocereinae
Genus:  | Harrisia
Britton[1]
Type species
Harrisia gracilis

Species

See text.

Synonyms[1]

* (Backeb.) Backeb. Riccob.
* Erythrocereus Eriocereus
* Houghton Roseocereus

Harrisia (applecactus[2] and moonlight cactus[3][4]) is a genus of night blooming cacti.

## Contents

* 1 Description
* 2 Distribution
* 3 Taxonomy
* 3.1 Species
* 4 References
* 5 External links

## Description

They are tree-shaped, sometimes climbing or shrub-like cacti with cylindrical shoots. They reach heights of up to 7 m. The shoots are ribbed (four to twelve ribs) and do not form aerial roots. The flowers open at night, are white and up to 12 cm in diameter. After successful pollination, rounded fruits are formed, which are red to orange in color. The fruits have scales with areoles in the axils. The black seeds are 2 to 3 × 1.5 mm in size.[5]

## Distribution

Plants are 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.[6]

Harrisia cactus is an exotic invasive in Queensland,[3][7] Africa, and the U.S. state of Hawaii.

## Taxonomy

The genus was established by Nathaniel Lord Britton in 1909.[1]

### Species

As of September 2023[update], Plants of the World Online accepted the following species separated into two subgenera:[8][1]

Subgenus | Image | Scientific name | Distribution

|
|
|

Eriocereus (A. Berger) A.R. Franck |  | Harrisia tetracantha (Labour.) D.R.Hunt | Bolivia.
| Harrisia regelii (Weing.) Borg | Argentina (Santa Fé, Entre Ríos) to Uruguay.
| Harrisia martinii (Labour.) Britton | E. Paraguay to NE. Argentina.
| Harrisia bonplandii (J.Parm. ex Pfeiff.) Britton & Rose | Paraguay, Argentina, Bolivia
| Harrisia pomanensis (F.A.C.Weber ex K.Schum.) Britton & Rose | Argentina, Bolivia, Paraguay
| Harrisia tortuosa (J.Forbes) Britton & Rose | Bolivia to Uruguay.
Harrisia |  | Harrisia aboriginum Small ex Britton & Rose | Florida, on the Gulf Coast of the counties of Lee, Sarasota County, and Charlotte
| Harrisia adscendens (Gürke) Britton & Rose | Brazil
| Harrisia brookii Britton | Bahamas.
| Harrisia caymanensis A.R.Franck | Cayman Islands, Swan Islands.
| Harrisia divaricata (Lam.) Backeb. | Hispaniola.
| Harrisia earlei Britton & Rose | Cuba
| Harrisia eriophora (Pfeiff.) Britton | Cuba.
| Harrisia fernowii Britton | Cuba.
| Harrisia fragrans Small ex Britton & Rose | St. Lucie County, Florida
| Harrisia gracilis (Mill.) Britton | Jamaica
| Harrisia portoricensis Britton | Puerto Rico
| Harrisia taetra Areces | Cuba.

## References

1. ↑ 1.0 1.1 1.2 1.3 "Harrisia Britton". 2020-11-18. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:298171-2.
2. ↑ "Harrisia". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=HARRI2. Retrieved 10 May 2015.
3. ↑ 3.0 3.1 "Harrisia cactus". The State of Queensland, Department of Agriculture, Fisheries and Forestry. 2013. https://www.daf.qld.gov.au/__data/assets/pdf_file/0003/49179/IPA-Harrisia-Cactus-PP22.pdf.
4. ↑ "Harrisia Cactus". http://herbiguide.com.au/Descriptions/hg_Harrisia_Cactus.htm.
5. ↑ Anderson, Edward F.; Eggli, Urs (2005) (in de). Das grosse Kakteen-Lexikon. Stuttgart (Hohenheim): Ulmer. p. 337–341. ISBN 3-8001-4573-1.
6. ↑ Flora of North America
7. ↑ "Prohibited invasive plants: Harrisia cactus". Queensland Government. 1 January 2016. https://www.business.qld.gov.au/industries/farms-fishing-forestry/agriculture/land-management/health-pests-weeds-diseases/weeds-diseases/prohibited/harrisia-cactus.
8. ↑ Franck, Alan R. (2016). "MONOGRAPH OF HARRISIA". Phytoneuron. http://www.phytoneuron.net/2016Phytoneuron/85PhytoN-HarrisiaPt1.pdf.

## External links

Wikidata ☰ Q133985 entry

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