Pholidota imbricata
Pholidota imbricata, commonly known as the common rattlesnake orchid or necklace orchid, is a plant in the orchid family and is a clump-forming epiphyte or lithophyte with crowded pseudobulbs. Each pseudobulb has a single pleated, leathery leaf and up to sixty white, cream-coloured or greenish, cup-shaped flowers in two ranks along a wiry flowering stem. There is a large, papery bract at the base of each flower. This species is native to areas from tropical and subtropical Asia to the southwest Pacific. Description. "Pholidota imbricata" is an epiphytic or lithophytic, clump forming herb with crowded  pseudobulbs long and wide. Each pseudobulb has a single pleated, leathery, dark green, oblong to lance-shaped leaf long and wide on a stalk about long. Between twenty and sixty cup-shaped, white, cream-coloured or greenish resupinate flowers long and wide are arranged in two rows along a wiry flowering stem long. There is a large, concave pinkish bract at the base of each flower. The dorsal sepal is long and wide, the lateral sepals long and about wide. The petals are long and about wide. The labellum is about long and wide and concave with three lobes. The  side lobes are erect and the midlobe is divided again into three lobes. Flowering occurs between March and May. Taxonomy and naming. "Pholidota imbricata" was first formally described in 1825 by William Jackson Hooker who published the description in "Exotic Flora". The specific epithet ("imbricata") is a Latin word meaning "overlapping like roofing-tiles and shingles". Distribution and habitat. The common rattlesnake orchid usually grows on trees and rocks in rainforest, sometimes in other humid, sheltered places. It occurs in China, the Indian subcontinent, Cambodia, Laos, Myanmar, the Nicobar Islands, Thailand, Vietnam, Borneo, Java, the Lesser Sunda Islands, Peninsular Malaysia , the Maluku Islands, the Philippines, Sulawesi, Sumatra, the Bismarck Archipelago, New Guinea, the Solomon Islands, Queensland, Fiji, New Caledonia, the Santa Cruz Islands and Vanuatu. In Queensland it is found on some Torres Strait Island and on the Cape York Peninsula as far south as Townsville.