Tropidia viridifusca
species of plant

Tropidia viridifusca, commonly known as the dark crown orchid, is an evergreen, terrestrial plant with thin, pleated, dark green leaves on a thin, upright stem with up to seven green and brown flowers crowded on a short flowering stem on top. It is only known from three Pacific Islands near Australia.
Description
Tropidia viridifusca is an evergreen, terrestrial herb with thin but tough, upright stems 150–300 mm (6–10 in) tall with between four and seven thin, pleated, dark green leaves 50–150 mm (2–6 in) long and 10–20 mm (0.4–0.8 in) wide. The leaves have three prominent veins. Above the leaves is a flowering stem about 10 mm (0.4 in) long with between two and seven green and brown flowers. The flowers open widely and are 8–10 mm (0.3–0.4 in) long and 6–8 mm (0.2–0.3 in) wide. The sepal are 8–9 mm (0.31–0.35 in) long and 3–4 mm (0.1–0.2 in) wide with the lateral sepals spreading widely apart from each other. The petals are 7–8 mm (0.28–0.31 in) long and 2–3 mm (0.08–0.1 in) wide. The labellum is 6–8 mm (0.24–0.31 in) long, about 3 mm (0.1 in) wide and brown to almost black with a thick pouch at its base. Flowering occurs between December and January.
This brief starts where responsible research should: with the source description of “Tropidia viridifusca” as species of plant. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Dec 6, 2025. The linked authority identifier is Q15472392. None of the 0 selected statements returned an explicit reference.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Tropidia viridifusca” 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.