COMMON DUCKWEED
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| File Size: 120 KB |
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Lemna minor L.
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| Geary County, Kansas |
| Perennial |
| Height: Plants aquatic, sometimes stranded on mud |
| Family: Araceae - Arum Family |
| Flowering Period: June, July, August, September,October |
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| Stems: | | Stems absent. Roots 1 per thallus, to 3/5 inch, tip mostly rounded; sheath not winged at base. | | Leaves: | | Leaves not clearly differentiated. Thallus 1 or in clusters of 2-5 or more, usually not reddish on lower surfaces, or if reddish, much less so than on upper surfaces, nearly round to elliptic or obovate, 1/12 to 1/6 inch long, 2--4 x 1/16 to 1/8 inch wide, lower surface slightly convex, upper surface convex or sometimes with an indistinct papilla, veins 3(-5), obscure, greatest distance between lateral veins near or proximal to middle of thallus. | | Inflorescences: | | Inflorescences highly reduced and consisting of 1-2 staminate and 1 pistillate flowers sometimes subtended by a tiny membranous sheath, rarely produced in nature in some species, plants reproducing mosty asexually through formation of plantlets in pouches along margins of tallus. | | Flowers: | | Flowers seldom observed, unisexual, 1(-2) per thallus; sepals absent, petals absent; stamens 1-2; pistil 1. | | Fruits: | | Utricles; seeds 1-3, with 8-15 distinct ribs, remaining in fruit wall after ripening. | | Habitat: | | Ponds and lakes, marshes, backwater areas along rivers and streams, springs and spring runs | | Distribution: | | Occurs statewide | | Origin: | | Native | | Comments: | | Lemna, a Greek name of a water plant. |
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| Common duckweed |  | | 116 KB | | Geary County, Kansas |
| | Common duckweed |  | | 159 KB | | Geary County, Kansas |
| | Common duckweed |  | | 95 KB | | Geary County, Kansas |
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