Limosella aquatica


Sp. Pl. 2: 631. 1753.

Common names: Limosella aquatique
Synonyms: Limosella pubiflora Pennell
Treatment appears in FNA Volume 17. Treatment on page 339. Mentioned on page 338.

Annuals solitary or mat-forming. Leaves clustered, usually rosulate; blade spatulate to linear, (1.5–)3–10(–20) × 0.5–3 cm, young leaves auriculate at base. Pedicels spreading in fruit, (0.04–)2–6 cm. Flowers: calyx often purple spotted between lobes, lobes 1 mm, tube 1–2 mm; corolla white to pink, rarely pale purple abaxially, 2–3 mm, lobes acute; stamens attached at different levels; style 0.2–0.4 mm, entire or 2-lobed. Capsules ellipsoid to globular, (2–)2.5–4 mm. 2n = 40.

Phenology: Flowering Apr–Oct.
Habitat: Periodically flooded mud of streams and ponds, estuaries, vernal pools.
Elevation: 0–3200 m.


Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., P.E.I., Que., Sask., Yukon, Alaska, Ariz., Ark., Calif., Colo., Idaho, Minn., Mo., Mont., Nebr., Nev., N.Mex., N.Dak., Oreg., S.Dak., Utah, Wash., Wyo., Mexico, Europe, Asia.


Limosella aquatica grows primarily in fresh water; it has also been found in brackish and alkaline water. Leaves are usually spatulate; narrow-leaved plants occur throughout the range. Narrow-leaved plants in the southwest have been called L. pubiflora; there are no consistent characteristics to distinguish L. pubiflora from L. aquatica. Narrow-leaved plants in the western United States have been called L. acaulis Sessé & Mociño; these specimens do not match true L. acaulis. Clasping leaf bases are best seen on young leaves.

Selected References


Lower Taxa

... more about "Limosella aquatica"
Kerry A. Barringer +
Linnaeus +
Limosella aquatique +
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Ark. +, Calif. +, Colo. +, Idaho +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wyo. +, Mexico +, Europe +  and Asia. +
0–3200 m. +
Periodically flooded mud of streams and ponds, estuaries, vernal pools. +
Flowering Apr–Oct. +
Illustrated +
Limosella pubiflora +
Limosella aquatica +
Limosella +
species +