Thelymitra inflata Jeanes

Muelleria 19: 71 (2004) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Flowering stem erect, straight, 20–40(–65) cm tall, 1.3–3 mm diam., green to purplish. Leaf linear, attenuate, 13–30 cm long, 4–10 mm wide, fleshy, canaliculate, ribbed abaxially, sheathing at base, dark green with a purplish base. Inflorescence 1–6-flowered, open. Sterile bracts usually 2. Perianth segments lanceolate to ovate, 6–13 mm long, dark blue to purplish. Column slender, 5–6 mm long, blue to pinkish; mid-lobe expanded into hood over the anther, tubular, very inflated, gently curved, pinkish brown, brown or less often blackish, grading to yellowish at the apex, covered with a waxy often glistening bloom, apex deeply split into 2 more or less parallel lobes; lateral lobes converging 1.5–2 mm long, digitiform, porrect at base, apical half projecting upwards, each with a toothbrush-like arrangement of white, cream or yellow hairs terminating in front of mid-lobe. Anther inserted towards base of column, shortly beaked. Flowers Sep.–Dec.

DunT, Glep, VVP, Wim. Also SA, Tas. Grows in moist woodlands and open forest, often in disturbed, winter-wet sites on clay loam soils.

Currently known only from a few sites in south-western Victoria.

Flowers are self-pollinating and only open on warm, humid days.

Distinguished from Thelymitra holmesii and Thelymitra lucida by the thick glistening bloom on the highly inflated mid-lobe of the column.

Created by: Jeff Jeanes, 2014-09-02
Updated by: Val Stajsic, 2018-02-16
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Thelymitra
Higher taxa


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

State distribution

Distribution map
South Australia