Tall Sun Orchid (Thelymitra media)

Flowers in Spring/Summer (Oct - Jan), favours high rainfall areas including montane habitat in well-drained soil.

Flowers are large, plant is robust and top of the column has finger-like glands.  The photo ruler indicates the height of this particular plant - a total of 16 inches (42cm).

Believed to be pollinated by bees but if not, then the flowers will self pollinate.  These flowers open freely on warm to hot days.


Mountain Summer Spider Orchid (Arachnorchis aestiva - formerly Caladenia aestiva)

Flowers in Summer (Dec - Jan), favours montane slopes in forests with heathy under-story.

Flowers moderately large, greenish yellow and labellum has a maroon apex.  The flowering is stimulated by previous summer fires.  The photo ruler indicates the height of this particular plant - a total of 10 inches (25cm).

Pollination of the Arachnorchis species has been studied very little but it is thought that spider orchids are generally pollinated by pseudocopulation (male thynnid wasp).


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