Thelymitra exigua (?)
T exigua is an uncommon diminutive blue sun orchid with a short scape to 25 cm, and small flowers. The specimens shown here may be T pauciflora however but expert opinion is that the classification is unclear, so I have listed these images under both T pauciflora and also T exigua.
The images were taken around the S Hobart hills on 8 Nov 2022. the plants were spread across a km or so of very poor mudstone hillside with sparse vegetation.