Botanical name: Ruppia maritima Family: Ruppiaceae (Ditch-grass family)
Synonyms: Ruppia salina, Ruppia pectinata, Ruppia brevipes
Ditch Grass is a submerged, aquatic, rhizomatous, perennial herb. Stems are thread-like, branched, round, 6-50 cm. Leaves are alternate, thread-like, 3-20 cm long, attached at the base to a membranous, sheathing stipule 5-20 mm long with or without a blade to 3 cm long. Flowers are borne in leaf-axils, in umbels of few to several 2-flowered spikes. Flower-cluster-stalks are up to 30 cm long and coiled in fruit. Flowers are perfect, regular; perianth absent; stamens 2; pistils 4 to 6, ovaries superior. Fruit is ovoid, drupe-like, 2-3 mm long, beaked, 1-seeded, borne on a flower-stalk. Ditch Grass is found almost throughout the world.
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The flower labeled Ditch Grass is ...