Oxera crassiflora S.Moore

Red List Status -

Least Concern (LC) , assessed in 08/09/2017

Oxera longifolia is a slender or robust liana endemic to New Caledonia, largely distributed from south to north of Grande Terre. It occurs in dense humid and mesophilous forests on volcano-sedimentary substrate up to 800 m asl. Its extent of occurrence (EOO) and area of occupancy (AOO) are 9,643 and 232 km², respectively. This species does not seem threathened and is quite common and abundant. Therfore, O. longifolia is listed as Least Concern (LC).

Geographical area

O. longifolia is endemic to New Caledonia, and is largely distributed from the south to the north of Grande Terre.


Population size is unknown but field observations show it is a common species.


O. longifolia occurs in dense humid and mesophilous forest on volcano-sedimentary substrate, up to 800 m asl.


This species does not seem to be threatened, although some subpopulations may be impacted by fires, Rusa deer (Rusa timorensis) and feral pigs (Sus scrofa).


This species is not protected by any legislation in New Caledonia, but it occurs in three protected areas: Vallée de la Thy, Aoupinié and Parc des Grandes Fougères. This species is cultivated at the IAC (Institut Agronomique de Nouvelle-Calédonie) nursery of Saint-Louis and some nurseries.


Mabberley DJ, de Kok RPJ. 2004. Labiatae. In: Morat P,ed. Flore de la Nouvelle-Calédonie et dépendance.

Morat, P.; Jaffré, T.; Tronchet, F.; Munzinger, J.; Pillon, Y.; Veillon, J.-M. and Chalopin, M. 2012. Le référentiel taxonomique Florical et les caractéristiques de la flore vasculaire indigène de la Nouvelle-Calédonie [The taxonomic database « FLORICAL » and characteristics of the indigenous flora of New Caledonia]. Adansonia sér 3(34) , p.177-219. 2016. Faune et Flore de Nouvelle-Calédonie.

Gâteblé, G. 2016. Flore ornementale de Nouvelle-Calédonie.

Barrabé L, Karnadi-Abdelkader,G, Ounemoa,J,de Kok RPJ., Robert N, Gâteble,G. 2015. Recircumscription of Oxera (Lamiaceae: Ajugoideae) ta include Faradaya based on molecular and anatomical data. Botanical Journal of the Linnean Society(179) , p.693-711.


Assessor(s): Gâteblé, G., Barrabé, L., Fleurot, D., Amice, R., Cazé, H., Bruy, D., Héquet, V., Vandrot, H., Butin, J., Mandaoué, L., Haverkamp, C., Dumontet, V., Laudereau, C.

Reviewer(s): Meyer, S.

Facilitator(s): Tanguy, V., Warimavute, G.

Geographical distribution