Galanthus reginae-olgae three smaller inner tepals, white with variable green markings near the tips. The outer tepals are about 15–35 cm long, the inner ones 9–12 mm long. Populations of "Galanthus reginae-olgae" that flower at different times, with or without the leaves being fully developed, have been described as separate species or subspecies. Those described as "G. reginae-olgae" subsp. "reginae-olgae" flower in the autumn, either before the leaves develop or with the leaves. Those described as "G. reginae-olgae" subsp. "vernalis" flower in late winter or early spring, with the leaves. "Galanthus reginae-olgae" was first described in 1876 by Theodoros G. Orphanides. The
Caladenia nivalis description was published in "Nuytsia". The specific epithet ("nivalis") is a Latin word meaning "snowy" or "of snow" referring to the bright white flowers of this species. The exotic spider orchid occurs between Cape Naturaliste and Moses Rock in the Jarrah Forest and Warren biogeographic regions where it grows in peppermint woodland, coastal heath and in granite crevices. "Caladenia nivalis" is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. Caladenia nivalis Caladenia nivalis, commonly known as the exotic spider orchid or crystalline spider orchid, is a species of orchid endemic to the south-west of