Caladenia longicauda subsp. extrema
subspecies of plant
Caladenia longicauda subsp. extrema, commonly known as the late white spider orchid or Seaton Ross spider orchid is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and one or two mainly white flowers with long, mostly spreading lateral sepals and petals. It is a relatively rare orchid which is similar to the tangled white spider orchid (subspecies redacta) but has larger flowers and a later flowering period.
Description
Caladenia longicauda subsp. extrema is a terrestrial, perennial, deciduous, herb with an underground tuber and which usually grows as solitary plants. It has a single hairy leaf, 100–170 mm (4–7 in) long and 5–12 mm (0.2–0.5 in) wide. One or two mostly white flowers 80–110 mm (3–4 in) long and 60–90 mm (2–4 in) wide are borne on a spike 160–300 mm (6–10 in) tall. The dorsal sepal is erect, 50–80 mm (2–3 in) long and 2–3 mm (0.08–0.1 in) wide. The lateral sepals are 60–95 mm (2–4 in) long and 5–7 mm (0.2–0.3 in) wide and the petals are 55–80 mm (2–3 in) long and 3–5 mm (0.1–0.2 in) wide.
“Caladenia longicauda subsp. extrema” enters the record as subspecies of plant. Crown Archives preserves that source wording while asking what Caladenia, longicauda and subsp can confirm, complicate or overturn.
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“Caladenia longicauda subsp. extrema” is worth following because a concise public description often conceals a longer documentary argument. Here, Caladenia, longicauda and subsp provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 31, 2024. The linked authority identifier is Q26205516. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Caladenia longicauda subsp. extrema” 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.