P. rosea is an efarinose species common in wet meadows. It is variable and can approach P. warshenewskiana (a smaller plant with annulate flowers and escapose at flowering). Usually the flowers bloom before the leaves appear (precocious), but in P. rosea var. elegans the flowers bloom with the leaves (coaetaneous). No attempt has been made to identify the images which may represent this variation. In cultivation, it is usually a deep pink, but in the wild it can be much paler. Has been hybridized with P. clarkei in cultivation.