Xyris pancheri is a small herb growing up to 25-30 cm high endemic from New Caledonia. It is restricted to the southern massif of Grande Terre (massif du Grand Sud), from the far south of the massif (Goro) to the upper part of the massif (Dumbéa). It occurs in wetland areas such as open swampy vegetation and hydromorphic maquis on ultramafic substrates over an altitude ranging from 30 to 830 m. Some subpopulations may be impacted mining activities at Goro. However this species is very common and it does not seem to be threatened. With an extent of occurrence (EOO) and area of occupancy (AOO) equal to 954 and188 km², respectively, and due to the fact that it is abundant, Xyris pancheri is therefore listed as Least Concern (LC).

Geographical area

Xyris pancheri is endemic to New Caledonia where it is restricted to the southern massif of Grande Terre (massif du Grand Sud), from the far south of the massif (Goro) to the upper part of the massif (Dumbéa).

Population

The population size is not known. Based on field observations, this species is very common.

Habitat

This species occurs in wetland areas such as open swampy vegetation and hydromorphic maquis on ultramafic substrates over an altitude ranging from 30 to 830 m.

Threats

Some subpopulations may be impacted by mining activities at Goro. However this species is very common and it does not seem to be threatened.

Conservation

Xyris pancheri is protected by legislation in Province Sud and it does occur is several protected areas : Montagne des sources, Barrage de Yaté, Chutes de la Madeleine, la Dumbéa, Côte Oubliée, Haute Dumbéa, Haute Yaté, Rivière bleue, Massif du Kouakoué.

Bibliography

MOREL, JÉRÉMIE; MUNZINGER, JÉRÔME 2021. Novitates neocaledonicae. XIII. Taxonomy and nomenclature of the genus Xyris (Xyridaceae, Poales) in New Caledonia, with description of a new species.. Phytotaxa(502 (3)) , p.219-229.

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.

Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin 2020. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia [continuously updated].

Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.

Experts

Assessor(s): Amice, R., Bruy, D., Cazé, H., Garnier, D., Laudereau, C., Mandaoué, L., Eltabet, N., Vandrot, H.

Reviewer(s): Gâteblé, G.

Facilitator(s): Warimavute, G., Fourdrain, A.