Jepson eFlora: Key page
Vascular Plants of California
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Key to Lemna

View taxon page for Lemna

(For a list of species in Lemna, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Plant body 6–10 mm, on  stalk, often in branched chains of 8–30 ..... L. trisulca

1' Plant body 1–6 mm, appearing , single or generally in 2s to 8s

2. Veins per plant body 1 (sometimes obscure)

3. Plant body 1–2.5 mm, generally thinner at margin, generally in 2s, not attached; vein < 2/3 distance from root attachment to tip of plant body ..... L. minuta

3' Plant body 2–4 mm, thin ± throughout, often in 4s to 8s, attached; vein up to 3/4 distance from root attachment to tip of plant body ..... L. valdiviana

2' Veins per plant body 3–5

4. Root  with 2 obvious, wing-like appendages at base ..... L. aequinoctialis

4' Root sheath not winged

5. Plant body widely  to round, tip , lower surface generally convex ..... L. gibba

5' Plant body widely elliptic to obovate, tip generally symmetric, lower surface flat

6. Upper surface generally smooth; lower surface green; winter  0 ..... L. minor

6' Upper surface midline generally with row of minute bumps; lower surface often ± red in age; winter buds dark green or brown in fall ..... L. turionifera



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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