This cactus, formerly known as Notocactus warasii, develops into an imposing plant over time.
Fist it grows solitary, later clustering to an attractive group.
Thin, hair-like, yellow spines sit on the green ribs.
The large, pale yellow - nearly white flowers with a diameter of up to 5 cm appear regularly on the crown of somewhat larger plants.
The name honors Eddie Waras, the Brazilian plant collector from Sao Paulo. It was first described in 1973 as Eriocactus warasii by Friedrich Ritter.
Plants about 5.5 cm in diameter, about 8 cm tall