Buccaferrea maritima, Ruppia andina, Ruppia brachypus, Ruppia brevipes, Ruppia cirrhosa, Ruppia curvicarpa, Ruppia intermedia, Ruppia obliqua, Ruppia pectinata, Ruppia rostellata, Ruppia salina, Ruppia spiralis, Ruppia subsessilis, Ruppia taquetii, Ruppia transsilvanica, Ruppia trichodes, Ruppia zosteroides, Zannichellia pedunculata
Beaked tasselweed, ditch-grass, ditchgrass, tassel pondweed, widgeongrass
Ruppia maritima is a species of aquatic plant known by the common names widgeongrass, ditch-grass and tassel pondweed. Despite its Latin name, it is not a marine plant; is perhaps best described as a salt-tolerant freshwater species. The generic name Ruppia was dedicated by Linnaeus to the German botanist Heinrich Bernhard Ruppius (1689-1719) and the specific name (maritima) translates to "of the sea".
Ruppia maritima, also known as beaked tasselweed or wigeon grass, is a submerged aquatic plant that grows in salty and brackish waters. In Qatar, it has been found in coastal areas, including mangrove swamps, tidal flats, and shallow waters of the Arabian Gulf. Studies have reported its presence in locations such as Al Thakhira, Al Khor, and Ras Umm Sa'id, where it forms dense beds and provides habitat for marine life. The plant is adapted to survive in high-salinity environments and can tolerate a range of water temperatures, making it a common component of Qatar's coastal ecosystems.
Observations of Ruppia maritima in Qatar revealed that the plant has narrow leaves and a clumping growth habit. The roots of the plant were extracted from wastewater treatment ponds, indicating its ability to thrive in such environments. In April, the plant was found to be in flower, with membranous sheaths bearing pea-shaped fruits (drupelets). Close-up observations showed that the fruits were clustered together and had a coiled stalk (peduncle) bearing flowers and fruits. The plant formed dense stands in the sewage lagoons, suggesting its ability to tolerate and thrive in polluted water conditions. Overall, Ruppia maritima appears to be a hardy and adaptable species capable of growing in a variety of aquatic environments in Qatar. Its growth habit and reproductive structures were observed in detail, providing insight into its biology and ecology.
www.catalogueoflife.org
QNHG (Qatar Natural History Group) and associated people, for a possibility to participate in their field excursions and to learn about local nature.