A Grammatical Dictionary of Botanical Latin

natans,-antis (part.B): swimming, floating on or under the surface of water [> L. nato,-avi,-atum, 1., to float, to swim; to swim, overflow, inundate]; cf. fluitans,-antis (part.B), swimming, floating; see swimming;

NOTE: not nascens,-entis (part.B),q.v., beginning, being born.

- [Hypnum fluitans; an aquatic moss] truncus spithameus aut pedalis, natando erectus, recedente aqua decumbens, repens (Hedw.), the stem [7 inches] or one foot [12 inches] [long], when floating, etect, decumbent [i.e. prostrate with the tips erect] when the water recedes; creeping.

- trichoma in fasciculos squamuliformes discretos libere natantes aggregata, trichomes in fascicles scale-like separate freely swimming clustered together (Stearn).

- trichomata libere natantia, trichomes free-swimming (Stearn).

- plantae thallosae, parvae, terrestres, raro natantes (Steph.), plants thallose, small, terrestrial, rarely floating.

- herba succulenta, aquatica, natans (B&H), herb succulent, aquatic, floating.

- herbae aquatica, rhizomate submerso, folia et scapos unifloros, rarius ramos foliatos natantes emittente. (B&H), aquatic herbs with the submerged rhizome sending out floating leaves and one-flowered scapes, very rarely leaf-bearing branches.

- folia petiolo longo super aquam natantia, rarius emersa (B&H), leaves with a long petiole, floating above the water, more rarely emersed [i.e. partly below and above the water surface.

Trapa natans, the Water-Caltrop, of quiet streams and ponds.