||Sun orchids have all six Perianth segments similar in size, shape and colour, with the Labellum not markedly different from the other Petals. This is the most spectacular sun-orchid in the Park. It has a single, stiff, channelled leaf at the base, up to 300mm long. The stem is stout, with several small, brownish, sheathing Cauline leaves. The stem bears a spike of 3 to 30 flowers. The Perianth segments are usually blue, with fine darker veins, Ovate and pointed, 15mm long. The Column is whitish, 7mm long, with a blackish collar, It has three lobes. The centre lobe is short, with a yellow Glandular rim. The side lobes form two short arms, ending in a tuft of whitish hairs.