Hydnophytum ferrugineum-rare, flowering size NE Australian caudexed ant plant

Hydnophytum ferrugineum is a fairly compact, warm-growing ant plant of the coffee family (Rubiaceae) that is restricted to a very limited area in the rainforest of Far North Queensland, Australia. This species is the most recently-described Australian ant plant (2001), is rare in nature and is in very limited culture worldwide.