Leaves in a dense funnel-like rosette 20-40 cm long, 5-10 cm wide, ligulate, green or with dark purple spots or short barring above; margins with stout black spines. Inner leaves wholly purple at flowering. Inflorescence sunk in the centre of the rosette, many-flowered. Flowers 4-7 cm long; flower stalks 10-18 mm long; sepals green; petals white or blue.
Source: (2005). Bromeliaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.