Australian Native Plants

  Caladenia longicauda (Common White Spider Orchid)

Caladenia longicauda photo
Caladenia longicauda species, photographed in John Forrest National Park, Western Australia

Photograph by Cygnis insignis. License: Public Domain.    (view image details)


distribution map showing range of Caladenia longicauda in Australia

Map is from The Atlas of Living Australia web site, licensed under Creative Commons Attribution 3.0 Australia License

Common Name
Common White Spider Orchid

Other Names
Daddy Long Legs

The Common White Spider Orchid is a spider orchid from Western Australian. The flower is white with very long drooping lateral petals and sepals. The dorsal petal is more upright, and the labellum or lip has toothed edges. there are a number of subspecies with differences in flower shape and color. Most subspecies has red markings on the labellum such as red toothed margins and red warts (calli), although the Stark White Spider Orchid (Caladenia longicauda eminens) has an all white form with no red. Subspecies include Merritt's White Spider Orchid (Caladenia longicauda merrittii), Inland Spider Orchid (Caladenia longicauda rigidula), Coastal White Spider Orchid (Caladenia longicauda calcigina), Tangled White Spider Orchid (Caladenia longicauda redacta), Hills White Spider Orchid (Caladenia longicauda clivicola). The species has a single leaf that grows to about 25 cm long.

swamps, wet hollows, water margins

Caladenia longicauda is found in south west of Western Australia from around Geraldton to east of Esperance.

Growth Characteristics
Height: 15cm - 60cm
Common Name:Common White Spider Orchid

Relatives in same Genus
  Caladenia ampla
  Caladenia arenicola
  Caladenia carnea
  Caladenia catenata
  Caladenia clavigera
  Caladenia crebra
  Caladenia cruciformis
  Caladenia flava
  Caladenia fulva
  Caladenia fuscata
  Caladenia gracilis
  Caladenia integra
  Caladenia latifolia
  Caladenia leptochila
  Caladenia moschata
  Caladenia paludosa
  Caladenia roei
  Caladenia tentaculata
  Caladenia ustulata
  Caladenia venusta
  Caladenia versicolor
  see A-Z list for more ...