Australian Tropical Rainforest Plants - Online edition

Gardenia ovularis F.M.Bailey

Click/tap on images to enlarge
Leaves and male flowers (?). © B. Gray
Fruit, side views and cross section. © W. T. Cooper
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon and 1st leaf stage, epigeal germination. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO

Bailey, F.M. (1893) Queensland Dept Agric. Bull. No. 21: Bot. Bull. No. 7 : 64. Type: Johnstone River, Dr. T.L. Bancroft; lecto: BRI (AQ 317839); iso: BRI, K, MEL. Fide Puttock (1988). Syntype: Barron River, E. Cowley.

Common name

Gardenia; Native Gardenia


Blaze distinctly layered.


Stipules completely encircling the twigs. Young shoots and young stipules often sticky or varnished. Leaf blades about 7-21 x 3-8 cm.


Calyx lobes about 5-15 mm long, corolla lobes about 12-30 mm long. Corolla tube tubiform. Anthers partially exserted from the corolla tube. Stigma white.


Fruits ovoid, about 30-40 x 20-38 mm, +/- circular in transverse section. Seeds brown to reddish brown. Placental pulp cream to pink.


Cotyledons broadly elliptic to +/- orbicular, about 4-5 mm long. At the tenth leaf stage: leaves obovate, apex shortly acuminate, base attenuate, glabrous, veins about 8-16 each side of the midrib; stipules interpetiolar, triangular. Seed germination time 26 to 45 days.

Distribution and Ecology

Endemic to NEQ and in the northern end of CEQ on Mt Elliot. Altitudinal range from near sea level to 1150 m. Grows as an understory tree in well developed rain forest on a variety of sites.

Natural History & Notes

Seeds eaten by native rats. Cooper & Cooper (1994).

RFK Code
Copyright © CSIRO 2020, all rights reserved.