familyLemnaceae
genusLemna

Lemna gibba

Linnaeus

Sp. Pl. 2: 970. 1753

Treatment appears in FNA Volume 22. Treatment on page 147.
Roots to 15 cm, tip mostly rounded; sheath not winged. Stipes white, thin, often decaying. Fronds floating, 1 or 2–5 or more, coherent in groups, obovate, often gibbous, 1–8 mm, 1–1.5 times as long as wide, margins entire; veins (3–)4–5(–7) (all originating from node), greatest distance between lateral veins near or distal to middle; papillae often indistinct; upper lower surface sometimes red colored, coloring beginning from margin, lower upper surface occasionally with distinct red spots beginning from margins near apex; largest air spaces longer than 0.3 mm; distinct turions absent. Flowers: ovaries (1–)2–7-ovulate, utricular scale with narrow opening at apex. Fruits 0.6–1 mm, laterally winged. Seeds with 8–16 distinct ribs, falling out of fruit wall after ripening. 2n = 40, 42, 44, 50.

Phenology: Flowering (rather frequent) spring–fall.
Habitat: Eutrophic, quiet waters in temperate regions with mild winters
Elevation: 0–1900 m

Distribution

V22 534-distribution-map.jpg

Ariz., Calif., Ill., Nebr., Nev., N.Mex., Tex., Wyo., northern Mexico, South America, Eurasia, Africa, Atlantic Islands.

Discussion

Selected References

None.

Lower Taxa

None.

Facts about "Lemna gibba"
AuthorElias Landolt +
AuthorityLinnaeus +
DistributionAriz. +, Calif. +, Ill. +, Nebr. +, Nev. +, N.Mex. +, Tex. +, Wyo. +, northern Mexico +, South America +, Eurasia +, Africa + and Atlantic Islands. +
Elevation0–1900 m +
HabitatEutrophic, quiet waters in temperate regions with mild winters +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorJohn Myers +
PhenologyFlowering (rather frequent) spring–fall. +
Publication titleSp. Pl. +
Publication year1753 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V22/V22 534.xml +
Taxon familyLemnaceae +
Taxon nameLemna gibba +
Taxon parentLemna +
Taxon rankspecies +
VolumeVolume 22 +