Pterostylis hildae, commonly known as the rainforest greenhood, is a species of orchid found in eastern Australia. It has a rosette of leaves and when flowering a rosette at the base of a flowering stem with a single green, white and brown flower. It is found in wet forests, including rainforest in New South Wales and Queensland. Description Pterostylis hildae is a terrestrial, perennial, deciduous, herb with an underground tuber and a rosette of between two and four elliptic leaves, each leaf long and wide. The leaves have a distinct petiole and sometimes a wavy edge. When flowering, there is a single green, white and brown flower long and wide which is borne on a flowering spike high. The dorsal sepal and petals are fused to form a hood or "galea" over the column and the petals and dorsal sepal have a short point on their tips which end at or near horizontal. There is a wide gap at each side of the flower between the petals and lateral sepals. The lateral sepals are erect with a tapering tip long no higher than the galea and there is a curved sinus with a deep notch between them. The labellum is long, about wide, curved and projects through the sinus. Flowering occurs from March to October. Taxonomy and naming Pterostylis hildae was first described in 1937 by William Nicholls and the description was published in The Victorian Naturalist from a specimen collected on Tamborine Mountain. The specific epithet (hildae) honours Hilda Geissmann for her contributions to nature study in Queensland. Distribution and habitat The rainforest greenhood is widespread and common in wet forest and rainforest between the Atherton Tableland in Queensland and Wollongong in New South Wales. References External links hildae Orchids of Queensland Orchids of New South Wales Plants described in 1937