Pterostylis laxa

Pterostylis laxa is a terrestrial, perennial, deciduous, herb with an underground tuber and when not flowering, a rosette of 12 to 25 bright green, egg-shaped leaves lying flat on the ground, each leaf long and wide. Flowering plants have a single flower long and wide which leans slightly forwards on a flowering stem high with between three and five stem leaves. The flowers are green and white with darker green or brown markings. The dorsal sepal and petals are fused, forming a hood or "galea" over the column. The dorsal sepal has a thread-like tip long. The lateral sepals are erect or backswept, held closely against the galea, have thread-like tips long and a flat sinus with a central notch between their bases. The labellum is long, wide, dark-coloured, curved, pointed and visible above the sinus. Flowering occurs from January to April. ==Taxonomy and naming==

Pterostylis laxa was first formally described in 1968 by John Blackmore from a specimen collected in the Upper Grose Valley. The description was published in The Orchadian. The specific epithet (laxa) is a Latin word meaning "loose" or "slack". ==Distribution and habitat==

Antelope greenhood grows among grasses on slopes in forest in north-eastern Victoria and in eastern New South Wales as far north as the Northern Tablelands. ==References==