Orchidaceae (Orchids) >

Commonly known as the Hairy Rufous Greenhood (Pterostylis ciliata), this native orchid is endemic to the south-west of Western Australia region. Other common names include Tall Rusthood and Hairy Rustyhood.

Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA ©

This native orchid has a large rosette of between four and eight leaves at its base. The leaves are usually withered by flowering time, flowering occurs from September to November.

Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham

From the rosette are up to eight or more green, brown, white flowers with translucent panels between 15–20 mm long and 8–9 mm wide, borne on a flowering spike between 100–220 mm tall. The flower leans forward. The labellum is small, fleshy, insect-like and covered with hairs.

Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham

The specific epithet (ciliata) is derived from the Latin word cilium meaning “eyelash”, that refers to the hairs on the labellum.

Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham
Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA © Terry Dunham

  • Scientific classification
  • Kingdom: Plantae
  • Phylum: Charophyta
  • Class: Equisetopsida
  • Subclass: Magnoliidae
  • Superorder: Lilianae
  • Order: Asparagales
  • Family: Orchidaceae
  • Genus: Pterostylis
  • Species: Pterostylis ciliata

Footnote & References

  1. Pterostylis ciliata (Hairy Rufous Greenhood), Stirling Range National Park WA, Photographs © Terry Dunham
  2. Pterostylis ciliata M.A.Clem. & D.L.Jones, Atlas of Living Australia, https://bie.ala.org.au/species/https://id.biodiversity.org.au/taxon/apni/51412064
  3. Hairy Rufous Greenhood (Pterostylis ciliata), iNaturalistAU, https://inaturalist.ala.org.au/taxa/1085007-Pterostylis-ciliata
  4. Pterostylis ciliata M.A.Clem. & D.L.Jones, Hairy Rufous Greenhood, Western Australian Herbarium (1998–). Florabase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dbca.wa.gov.au/browse/profile/10870
  5. Pterostylis ciliata, Wikipedia, https://en.wikipedia.org/wiki/Pterostylis_ciliata
  6. Rufous Greenhoods, Orchids of South-West Australia, https://chookman.id.au/wp_orchids/?page_id=1217

OrchidaceaeCaladenia barbarossa (Dragon Orchid) Caladenia bryceana subsp. bryceana (Dwarf Spider Orchid) Caladenia corynephora (Club-lipped Spider Orchid) Caladenia integra (Smooth-lipped Spider Orchid) Caladenia latifolia (Pink Fairies) Caladenia lobata (Butterfly Spider Orchid) Caleana major (Flying Duck Orchid) Caladenia melanema (Ballerina Orchid) Caladenia polychroma (Joseph’s Spider Orchid) Caladenia pulchra (Slender Spider Orchid) Caladenia pusilla (Tiny Caladenia) Caladenia serotina (Christmas Spider Orchid) Caladenia tessellata (Thick-lip Spider Orchid) Cryptostylis ovata (Slipper Orchid) Cephalotus follicularis (Western Australian Pitcher Plant) Dendrobium kingianum (Pink Rock Orchid) Dendrobium speciosum (Rock Orchid) Drakaea glyptodon (King-in-his-carriage Orchid) Elythranthera emarginata (Pink Enamel Orchid) Epiblema grandiflorum (Babe-in-a-cradle Orchid) Drakaea livida (Warty Hammer Orchid) Ericksonella saccharata (Sugar Orchid) Glossodia major (Wax-lip Orchid) Leptoceras menziesii (Rabbit Orchid) Microtis cupularis (Cupped Mignonette Orchid) Paracaleana nigrita (Flying Duck Orchid) Pterostylis cheraphila (Floodplain Rustyhood) Pterostylis ciliata (Hairy Rufous Greenhood) Pterostylis picta (Painted Rufous Greenhood) Rhizanthella johnstonii (Southern Underground Orchid) Spiculaea ciliata (Elbow Orchid) Thelymitra sp. Ongerup (Orange Sun Orchids) Thelymitra speciosa (Eastern Queen of Sheba’s)

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