Pterostylis ophioglossa
species of plant
Pterostylis ophioglossa, commonly known as the snake-tongue greenhood, is a species of orchid endemic to eastern Australia. It has a rosette of leaves at the base and a single dull green, white and brown flower with a deeply notched labellum.
Description
Pterostylis ophioglossa is a terrestrial, perennial, deciduous, herb with an underground tuber and a rosette of between four and six egg-shaped leaves. Each leaf is 15–25 mm (0.6–1 in) long and 4–20 mm (0.2–0.8 in) wide. Flowering plants have a similar rosette and a single dull green, brown and white flower borne on a flowering spike 100–250 mm (4–10 in) high. The flowers are 25–30 mm (0.98–1.2 in) long, 10–13 mm (0.4–0.5 in) wide and lean forward. The dorsal sepal and petals are joined and curve forward forming a hood called the "galea" over the column but the dorsal sepal is longer than the petals and has a pointed tip 2–3 mm (0.08–0.1 in) long. There is a flat, broad U-shaped sinus between the lateral sepals which have erect, thread-like tips 22–30 mm (0.9–1 in) long. The labellum protrudes above the sinus and is 13–16 mm (0.5–0.6 in) long, about 3 mm (0.1 in) wide, curved and brown with a deep notch on the end. Flowering occurs between April and July.
“Pterostylis ophioglossa” enters the record as species of plant. Crown Archives preserves that source wording while asking what Pterostylis, ophioglossa and species can confirm, complicate or overturn.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Oct 19, 2025. The linked authority identifier is Q15500362. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Pterostylis ophioglossa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.