Fifteen to thirty stamens with white or often pinkish filaments and yellow pollen encircle six to eighteen free carpels.

It occurs on the slopes of Mt Kosciusko and is locally common in spots with late-lying snow and between moss on the high ranges, such as Baw Baws, Snowy Range, Mt Buffalo, Bogong and Dargo High Plains.

[3] Caltha introloba occurs in Victoria with Brachyscome tadgellii, Carex gaudichaudiana, Carpha nivicola, Drosera arcturi, Oreobolus distichus and Schoenus calyptratus.

[4] Flower buds start growing in the middle of the southern summer (January) and have fully developed when fresh snow no longer melts away in May.

Photosynthesis did also occur at 0 °C and the growing season probably includes the entire period the plants are not covered by snow.