Fontainea pancheri is a small tree or shrub endemic to New Caledonia in the family, Euphorbiaceae, which grows to a height of 15 m.[3] Fontainea pancheri is a small dioecious tree growing to 15 m. The colour of the stem exudate is clear or reddish-brown.

Male flowers have 18 - 32 stamens and occur in well furnished bunches.

[3] The plant was first described in 1862 by Henri Ernest Baillon in the journal Adansonia.

[4][5] The name was changed by Édouard Marie Heckel in 1870 when he described the genus, Fontainea in "Étude au point de vue Botanique et Thérapeutique sur la Fontainea pancheri (Nobis)".

[1][2] The specific epithet, pancheri, derives from the name "Pancher" and honours the botanist Jean Armand Isidore Pancher who worked in New Caledonia.