Clump-forming herb with decumbent stems rooting at lower nodes and reddish around them. Leaves greenish-yellow, undulate, dotted with translucent glands, bitter to the taste. Racemes ± curving downwards. Perianth 2-2.5 mm long, pale pinkish or white, obscurely dotted with faint brownish glands; segments strongly inbricate. Locally abundant.