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Perennial of the Calceolariaceae family, native to Chile and Argentina, where it grows on high-altitude grassy and rocky slopes, in open and well-exposed environments.
In cultivation, it develops a basal rosette of modest leaves, from which particularly fine and branched stems rise, reaching 20 to 35 cm. It is precisely this slenderness of the stems, evoked by the epithet filicaulis, that constitutes the most distinctive feature of the species: the flower stalks are so slender that they give the whole a nearly airy lightness, very different from the massive habit of some other calceolarias.
The flowers are bilabiate, of a bright and luminous orange-yellow. The lower lip, swollen into a rounded and slightly flattened pouch, is noticeably more developed than the upper lip, reduced to a short hood. The green sepals remain clearly visible around each flower, forming a sharp contrast with the bright yellow of the petals. The flowers are scattered in loose and irregular cymes along the branches, without the corymbose density of other species.
In its natural habitat, its flowering extends from November to February. In cultivation under a temperate climate, it blooms from June to September.
It requires well-drained, light soil, in full exposure. It is suitable for collection rock gardens and cultivation in pots or troughs, where the fineness of its stems and the brilliance of its pouch flowers are particularly well appreciated.