Caladenia Endangered WA In marri (Eucalyptus Peak flowering period: Similar species: busselliana Hopper calophylla) and jarrah (E. mid September late to Dunsborough & A.P.Br. (Bussell’s marginata) woodland often October Caladenia spider-orchid) on the margins of paludosa (swamp Dormant between late swamps spider-orchid), November to late April Caladenia huegelii Flowering is stimulated by group summer fires with fewer flowering plant found other years Endangered WA In shallow soil on coastal Peak flowering period: Similar species: Caladenia caesarea subsp. maritima granite outcrops August to September Caladenia luteola. Hopper & A.P.Br. Differs from the typical Dormant between late (cape spider-orchid) subspecies in having October and late April an earlier flowering The flowers are strongly period, smaller flowers metallic scented. Plants and a coastal flower most years distribution Caladenia calcicola Vulnerable Victoria, SA In open forest and Peak flowering period: Similar species: G.W.Carr woodland on low ridges mid September to early Caladenia hastata, C (limestone overlaying limestone November with an early to reticulata, C. valida, C. orchid) mid-October peak stellata, C. lowanensis, C. cruciformis. Frequent hybridation occurs Caladenia Critically Tasmania Slopes and ridges on Peak flowering period: Similar species: campbellii endangered rolling hills among shrubs October and November Caladenia alata
Caladenia busselliana Hopper & A.P.Br. (Bussell’s spider-orchid) Endangered WA In marri (Eucalyptus calophylla) and jarrah (E. marginata) woodland often on the margins of swamps Peak flowering period: mid September late to October Dormant between late November to late April Flowering is stimulated by summer fires with fewer flowering plant found other years Similar species: Dunsborough Caladenia paludosa (swamp spider-orchid), Caladenia huegelii group Caladenia caesarea subsp. maritima Hopper & A.P.Br. (cape spider-orchid) Endangered WA In shallow soil on coastal granite outcrops Peak flowering period: August to September Dormant between late October and late April The flowers are strongly metallic scented. Plants flower most years Similar species: Caladenia luteola. Differs from the typical subspecies in having an earlier flowering period, smaller flowers and a coastal distribution Caladenia calcicola G.W.Carr (limestone Vulnerable Victoria, SA In open forest and woodland on low ridges overlaying limestone Peak flowering period: mid September to early November with an early to mid-October peak Similar species: Caladenia hastata, C reticulata, C. valida, C. stellata, C. lowanensis, C. cruciformis. Frequent hybridation occurs Caladenia campbellii Critically endangered Tasmania Slopes and ridges on rolling hills among shrubs Peak flowering period: October and November Similar species: Caladenia alata orchid)
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