Caladenia Vulnerable WA Margins of winter-wet Peak flowering period: Similar species: christineae Hopper and freshwater lakes, mid September to Caladenia & A.P.Br. often under Melaleuca November harringtoniae, C. (Christine’s spider species or mixed longicauda subsp. Dormant between orchid) jarrah/marri forest redacta. Occasionally December to late hybridises with C. Summer fires stimulate harringtoniae flowering, and many populations have been found in flower only in the year after a summer fire Caladenia colorata Endangered SA Mostly in Callitris or blue Vegetative growth: late Similar species: D.L.Jones (coloured gum woodlands, sandy, May to early June Caladenia behrii, C. spider-orchid) fertile soils but also in rock brumalis, C. concolor, Peak flowering period: outcrops and in C. fulva, C. rosella, C. August to early October mallee/broombush woolcockiorum associations Caladenia concolor Vulnerable NSW, SA, Variety of woodland and Peak flowering period: Similar species: (crimson Victoria open forest habitats September and October Caladenia rosella, C. spider-orchid) (usually within oenochila ecosystems) among low heathy shrubs Caladenia conferta Endangered SA Mallee woodlands or Peak flowering period: Similar species: D.L.Jones (coast broombush on rock July to September Caladenia toxochila. spider-orchid) outcrops, favouring bare, Forms sporadic hybrids Occurs in areas of reliable open with C. brumalis. winter rainfall
Caladenia christineae Hopper & A.P.Br. (Christine’s spider orchid) Vulnerable WA Margins of winter-wet and freshwater lakes, often under Melaleuca species or mixed jarrah/marri forest Peak flowering period: mid September to November Dormant between December to late Summer fires stimulate flowering, and many populations have been found in flower only in the year after a summer fire Similar species: Caladenia harringtoniae, C. longicauda subsp. redacta. Occasionally hybridises with C. harringtoniae Caladenia colorata D.L.Jones (coloured spider-orchid) Endangered SA Mostly in Callitris or blue gum woodlands, sandy, fertile soils but also in rock outcrops and in mallee/broombush associations Vegetative growth: late May to early June Peak flowering period: August to early October Similar species: Caladenia behrii, C. brumalis, C. concolor, C. fulva, C. rosella, C. woolcockiorum Caladenia concolor (crimson spider-orchid) Vulnerable NSW, SA, Victoria Variety of woodland and open forest habitats (usually within ecosystems) among low heathy shrubs Peak flowering period: September and October Similar species: Caladenia rosella, C. oenochila Caladenia conferta D.L.Jones (coast spider-orchid) Endangered SA Mallee woodlands or broombush on rock outcrops, favouring bare, open Peak flowering period: July to September Occurs in areas of reliable winter rainfall Similar species: Caladenia toxochila. Forms sporadic hybrids with C. brumalis.
draft-guidelines-threatened-orchids.docx