Cypripedium montanum is a member of the orchid genus "Cypripedium". This species grows farther north than other "Cypripedium". Trilliums, and yellow lady slippers (genus "Cypripedium") are also common showy wildflowers. Originally thought to be an aberrant form of "Cypripedium parviflorum" var. "Cypripedium" Ulla Silkens is a grex of ground orchid of the genus "Cypripedium". Allied genera include "Paphiopedilum", "Selenipedium", "Cypripedium" and the monotypic "Mexipedium". Encyclia dickinsoniana and Cypripedium dickinsonianum are named after him. Cypripedioideae includes the genera "Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium" and "Selenipedium". "parviflorum" than it is to "Cypripedium parviflorum" var. "Cypripedium reginae" is quite rare. This latter is also the common name of "Cypripedium acaule". Cypripedium calceolus is a lady's-slipper orchid, and the type species of the genus "Cypripedium". Allied genera include "Cypripedium", "Paphiopedilum", "Selenipedium" and "Phragmipedium". It can carry one to twelve flowers, as in "Cypripedium californicum". Cypripedium macranthos, the large-flowered cypripedium, is a species of orchid.