Caladenia ampla (D.L.Jones) G.N.Backh.

Victorian Naturalist 124: 124 (2007) APNI

Taxonomic status:Accepted

Occurrence status:Endemic

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Flowering plant 15–22 cm tall. Leaf 6–10 cm long, 5–7 mm wide. Flowers solitary (rarely 2); perianth segments 2.8–3.7 cm long, cream to yellowish with reddish streaks, sometimes wholly reddish; dorsal sepal 3–3.7 cm long, 2.5–3 mm wide, oblong-lanceolate basally, tapered and ending in a thickened osmophore 6.5–9 mm long; lateral sepals 3–3.7 cm long, 4–5 mm wide, ovate-lanceolate basally, tapered and ending in a thickened osmophore 6–8 mm long; petals 2.8–3.2 cm long, 2–3 mm wide, narrow-lanceolate basally, tapered to an acuminate tip, sometimes with an apical cluster of glands. Labellum curved forward with apex recurved, lamina broadly ovate, unlobed or obscurely 3-lobed, 14–16 mm long, 10–12 mm wide (when flattened), cream with prominent red veins and dark red apex; marginal calli in 9–12 pairs, 1–2.5 mm long at base, reducing in length distally; lamina calli in 4 rows, extending half to two-thirds of way to labellum apex, linear to foot-shaped, c. 2 mm long at base of lamina, decreasing in size towards apex. Flowers Sep.–Oct.

Gold. Endemic to Victoria where known only from the western goldfieds (St Arnaud, Deep Lead) in mallee scrub and woodlands on well-drained gravelly soils.

This poorly known taxon is part of the Caladenia reticulata complex, which was recently split up into a multitude of segregate species.

Created by: Jeff Jeanes, 2015-04-17
Updated by: Val Stajsic, 2018-02-15
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Caladenia
Higher taxa


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

State distribution

Distribution map