Orchidaceae (Orchids) >

The Caladenia serotina is known as the Christmas Spider Orchid and is endemic to the south-west of Western Australia.

A terrestrial, perennial, it has a single erect, hairy leaf, with up to three flowers, that are variable in colours of white to cream and red. Flowering occurs from October to early January, although it can be prolific after fires in the previous summer.

Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham
Caladenia serotina (Christmas Spider Orchid), Great Southern Region WA © Terry Dunham

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

Footnote & References

  1. Caladenia serotina (Christmas Spider Orchids), Great Southern region WA. Photographs © Terry Dunham
  2. Caladenia serotina Hopper & A.P.Br., Christmas Spider Orchid, Atlas of Living Australia, https://bie.ala.org.au/species/https://id.biodiversity.org.au/taxon/apni/51399347
  3. Christmas Spider Orchid (Caladenia serotina), iNaturalistAU, https://inaturalist.ala.org.au/taxa/1151604-Caladenia-serotina
  4. Caladenia serotina Hopper & A.P.Br., Christmas Spider Orchid, Western Australian Herbarium (1998–). Florabase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions, Accessed 1 October 2023), https://florabase.dbca.wa.gov.au/browse/profile/15379

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)

FloraFlora Index Acacia Anigozanthos (Kangaroo Paws) Annual Yellowtop Apium prostratum subsp. prostratum var filiforme Apple Bush (Pterocaulon sphacelatum) Australian Bluebell Australian Gossypium Banksia Batswing Coral Tree Billy Buttons Birdsville Indigo Blue Pincushion Bush Banana Callistemon Calothamnus quadrifidus Cape Honeysuckle Cassia fistula (Golden Shower) Cattle Bush Common Heath Crotalaria Darwinia wittwerorum (Wittwer’s Mountain Bell) Daviesia oppositifolia (Rattle-pea) Desert Oaks Drumsticks Eremophila Eucalyptus Ficus Flannel Cudweed (Actinobole uliginosum) Georges Indigo Goatshead Burr (Sclerolaena bicornis) Golden Everlasting Goodenia Gossypium Grass and Grasses Grass Trees Grevillea Grey Germander Hakea Kapok Bush (Aerva javanica) Lambertia sp Leptospermum MacDonnell Ranges Cycad Maireana scleroptera Mexican Poppy Minnie Daisy Mistletoe Family Nardoo Native Apricot Nicotiana megalosiphon subspecies sessilifolia Nuytsia floribunda Orange Spade Flower Orchidaceae Parakeelyas (Calandrinia) Pebble Bush (Stylobasium spathulatum) Perennial Yellow Top Pink Everlasting Pink Rock Wort Poached Egg Daisy Portulaca Proteaceae Ptilotus Quandong Resurrection Fern Rosy Dock Ruby Saltbush Santalum Solanum Spike Centaury Spinifex Storkbill (Erodum cygnorum) Striped Mint Bush Sturt’s Desert Pea Sturt’s Desert Rose Tall Saltbush Tangled Leschenaultia Tar Vine Tribulus eichlerianus Upside-down Plant Urodon dasyphylla Variable Daisy Waratah (Telopea) Wertabona Daisy White Cedar (Melia azedarach) White Indigo White Paper Daisy Wild Passionfruit Wild Stock Woolly-Headed Burr Daisy Woolly Bush Yellow-keeled Swainsona