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DescriptionProstrate, succulent, hairless herb, rooting at the nodes. Leaves opposite, oblong or oblanceolate, fleshy, rounded at apex, decurrent into the petiole below; the petiole base connate with that of the opposite leaf. Flowers solitary. Perianth segments green outside, pink, red or purplish inside, each with a fleshy apiculus c. 1.5 mm long arising on the back just below the apex.