Noun | 1. | rock pink - pink-flowered perennial of rocky regions of western United States genus Talinum, Talinum - genus of mainly American more-or-less succulent herbs Talinum aurantiacum, flame flower, flameflower, flame-flower - plant with fleshy roots and erect stems with narrow succulent leaves and one reddish-orange flower in each upper leaf axil; southwestern United States; Indians once cooked the fleshy roots |