Australian Tropical Rainforest Plants - Online edition

Citrus inodora F.M.Bailey

Herb (herbaceous or woody, under 1 m tall)
Shrub (woody or herbaceous, 1-6 m tall)
Click/tap on images to enlarge
Flowers [not vouchered]. © G. Sankowsky
Flower. © Australian Plant Image Index (APII). Photographer: M. Fagg.
Leaves and fruit. © CSIRO
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, hypogeal germination. © CSIRO

Bailey, F.M. (1889) Report on New Plants, Preliminary to General Report on Botanical Results of Meston's Expedition to the Bellenden-Ker Range : 1. Type: Queensland, Harveys Creek, Russell River F. M. Bailey s.n.; holo: BRI; iso: K? Fide Mabberley (1998).

Common name

Queensland Wild Lime; Russell River Lime; Lime, Russell River; Lime, Queensland Wild


Usually flowers and fruits as a shrub about 1-3 m tall.


Paired spines usually present in the axil of each leaf. Spines about 4-10 mm long and very sharp. Leaf blades about 7-17 x 2.5-8.5 cm. marginal teeth irregular. Petiole channelled on the upper surface. Oil dots quite numerous.


Sepals, petals and ovary conspicuously glandular dotted. Calyx tube about 1 mm long, lobes about 1 mm long. Petals about 6-7 mm long.


Fruits ellipsoid, about 3.5-4 x 2.5 cm. Seeds about 5 x 3.5 mm immersed in vesicular pulp.


A few cataphylls are produced before the first true leaves. First true leaves obovate, margins toothed, oil dots visible with a lens. Hairs visible with a lens at least along the midrib on the underside. At the tenth leaf stage: leaf blade obovate, about 20-25 x 6-10 mm, base attenuate, marginal teeth large and conspicuous, oil dots numerous. Stipular spines straight and sharp, about 3-7 mm long. Seed germination time 20 to 60 days.

Distribution and Ecology

Endemic to NEQ, known only from the eastern foothills of the Bellenden Ker Range - Mt Bartle Frere area and also from the Cape Tribulation area. Altitudinal range from near sea level to 120 m. Grows as an understory plant in undisturbed well developed lowland rain forest.

Microcitrus inodora (Bailey) Swingle, Journal of the Washington Academy of Sciences 5 : 577(1915). Pleurocitrus inodora (Bailey) T.Tanaka, Blumea 2: 104(1936). Citrus maideniana Domin, Bibliotheca Botanica 89(4): 851(1928), Type: Queensland, Russell River, Harveys Creek, 1909 - 1910, K. Domim 5602; holo: PR. Microcitrus maideniana (Domin) Swingle, Journal of the Washington Academy of Sciences 28 : 533(1938).
RFK Code
Copyright © CSIRO 2020, all rights reserved.