Previous plant

Anthorrhiza bracteosa

Next plant

Plant from Sibonai, Sewa Bay, Normanby Island,
D,Entrecasteaux Islands, Milne Bay Province,
Papua New Guinea
by Derrick Rowe.


Excellent d
rawing by Derrick Rowe.


Another caudex by Derrick Rowe.


The stem by Derrick Rowe.

Author:  C.R. Huxley & M.H.P. Jebb, 1991
Family:  RUBIACEAE
Origin:  Papua New Guinea
Soil:  No; Epiphytic - Moss
Water:  Maximum
Sun:  Medium - Maximum
Thickness:  25-35 Centimetres
Height:  60 Centimetres
Flower:  White
Propagate:  Seeds
Names:  Ant plant
Synonyms:  -

This epiphytic member of the Rubiaceae family was described by Camilla Rose Huxley and Matthew H. P. Jebb in 1991. It is found in the jungles of Papua New Guinea. The hollow and smooth caudex gets 25 to 35 centimetres in diameter, the vines gets 60 centimetres long. The flowers are white on this ant plant, while the fruits are red.

The genera name from Green anthos; 'flower' and rhiza; 'root' for the root-derived spines around the flowers. The specific name from the Latin word bractea meaning 'scale' and the suffix -osa meaning 'having many'.

Only occasionally inhabited by ants, more usually by cockroaches, beetles and other invertebrates.

Huxley & Jebb's key to the Anthorrhiza genera can be found on the Anthorrhiza areolata page.

A key to the genera of the HYDNOPHYTTNAE is found on the Myrmecodia alata page.


A leaf by Derrick Rowe.


Flowers by Derrick Rowe.


Another caudex by Derrick Rowe.