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Black-clubbed spider orchid

Caladenia atroclavia

Black-clubbed spider orchid
Photo: Lachlan Copeland, CC BY-SA 4.0

Caladenia atroclavia is a rare ground orchid from south-eastern Queensland, with a single hairy leaf and a pale greenish-cream flower with dark purple clubs. It is known from only about four wild populations, so it is seldom grown and care advice is general rather than tested for this species.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Part shade
Water
Water moderately during its active growing season in cooler months and let the soil dry out while it is dormant over summer.
Soil
Free-draining gritty mix, such as sandy loam with added grit or granite gravel.
Temperature
10–25 °C; protect from hard frost and extreme summer heat.
How easy
Hard
Native range
Queensland (Darling Downs)
Climate
subtropical

About

Caladenia atroclavia, commonly known as the black-clubbed spider orchid, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Queensland. It is a ground orchid with a single hairy leaf and a pale greenish-cream coloured flower with dark purple clubs and red patches on the petals.

Where it grows

This caladenia grows in well-drained gravel derived from granite in woodland and swampy areas. Only four populations with a total of about 70 plants are known, occurring in the Girraween National Park and in the Wyberba area.

Other Caladenia plants

Coastal spider orchid · Canberra spider orchid · Caladenia ×aestantha · Summer spider orchid · Fairy orchid · Stegostyla Alpina · Boranup spider orchid · Bundarra spider orchid · Charming spider orchid · Dainty spider orchid · Dainty blue china orchid · Genoa spider orchid

Text excerpted from the Wikipedia article Caladenia atroclavia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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