Corybas grumulus (D.L.Jones) G.N.Backh.

Victorian Naturalist 127: 56 (2010) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Leaf circular, green above, silvery underneath, 15–25 mm long, 12–20 mm wide. Flower reddish-purple with white or purplish central patch, pedicel (excluding ovary) c. 2 mm long; dorsal sepal dark reddish, broadly oblong-obovate, narrowly contracted at base, hooded, covering labellum and extending beyond it, c. 2 cm long when flattened out; lateral sepals linear, tapered, fused at base, directed more or less horizontally forward, c. 3 mm long; petals linear, similar to lateral sepals and attached to them at the base, usually directed forwards, c. 2 mm long. Labellum 10–13 mm long when flattened out, tube erect, longer than lamina, auricles wide and opening downwards; lamina acutely recurved, expanded into trumpet-shaped orifice, crimson-streaked along veins with short bristles on boss, margins coarsely toothed and directed forwards or spreading; central boss purplish, white or cream, inconspicuous, convex (not channelled); callus entire. Column not winged. Flowers Aug.–Sep.

HNF, HSF. Found in mountain forests of eastern Victoria, often in fern gullies and wet sclerophyll forests growing in rich mountain loam or on rotting logs or treefern trunks.

Corybas grumulus can be distinguished from C. diemenicus by its smaller flowers in which the labellum tube is significantly longer than the lamina, and the marginal teeth on the labellum are shorter.

Created by: Jeff Jeanes, 2015-02-17
Updated by: Jeff Jeanes, 2015-02-17
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Corybas
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Corybas grumulus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Corybas grumulus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Highlands-Southern Fall present native
Highlands-Northern Fall present native

State distribution

Distribution map