Colletia

Colletia is a genus of flowering plants belonging to the Rhamnaceae family, with five species of spiny shrubs. All species of this genus are native to southern South America. They are non-legume nitrogen fixers.

## Contents

* 1 Taxonomy
* 1.1 Species
* 1.2 Species names with uncertain taxonomic status
* 1.3 Formerly placed here
* 2 References
* 3 External links

## Taxonomy

### Species

Colletia comprises the following species:[1][2]

* Colletia hystrix Clos \- pink crucifixion thorn
* Colletia paradoxa (Spreng.) Escal. \- crucifixion thorn, thorn of the cross, anchor plant
* Colletia spartioides Bertero ex Colla
* Colletia spinosissima J.F.Gmel.
* Colletia ulicina Gillies & Hook.

### Species names with uncertain taxonomic status

The status of the following species and hybrids is unresolved:[1]

* Colletia crenata Regel (unplaced)
* Colletia cruzerillo Bertero (unplaced)
* Colletia disperma Moc. & Sessé ex DC. (unplaced)
* Colletia horrida Brongn. ex Drap. (unplaced)
* Colletia velutina Spreng. (unplaced)

### Formerly placed here

* Celtis iguanaea (Jacq.) Sarg. (as Colletia iguanaea Scop.)
* Discaria americana Gillies & Hook. (as Colletia longispina Hook. & Arn. and C. longissima Steud.)
* Retanilla stricta Hook. & Arn. (as Colletia tetrandra Clos)
* Retanilla trinervia (Gillies & Hook.) Hook. & Arn. (as Colletia treba Bertero ex Colla)
* Rhamnus diffusa Clos (as Colletia maytenoides Griseb.)
* Scutia spicata (Humb. & Bonpl. ex Schult.) Weberb. (as Colletia spicata Humb. & Bonpl. ex Schult.)
* Trevoa campanulata (Phil.) Reiche (as Colletia campanulata Phil.)
* Trevoa quinquenervia Gillies & Hook. (as Colletia tralhuen Bertero ex Colla)

## References

1. ↑ 1.0 1.1 "The Plant List entry for Colletia". Royal Botanic Gardens, Kew and the Missouri Botanical Garden. September 2013. http://www.theplantlist.org/1.1/browse/A/Rhamnaceae/Colletia/. Retrieved 14 December 2020.
2. ↑ Govaerts R. "Colletia Comm. ex Juss.". Board of Trustees of the Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331505-2. Retrieved 15 December 2020.

* Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation. https://www.gutenberg.org/ebooks/11892.

## External links

* Strange Wonderful Things: Colletia paradoxa

Wikidata ☰ Q2716537 entry

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