Sagina maritima Don, it is an annual, usually glabrous, with or without a central rosette of leaves; main stem flowering, it and the numerous lateral branches varying from procumbent to erect; sometimes densely caespitose. Leaves linear-lanceolate, somewhat fleshy, obtuse or mucronulate but not aristate, rarely ciliate. Flowers usually 4-merous, solitary; peduncles erect, glabrous, filiform. Sepals ovate, obtuse, not mucronate, often with purplish margin; petals minute, or absent. Ripe capsule equalling or slightly shorter than the obliquely erect but not appressed sepals. Seeds usually more than 0.4 mm.
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