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Zizia trifoliata

Zizia trifoliata, Meadows Alexander, is a plant found throughout the eastern parts of the U.S. such as Alabama, Arkansas, District of Columbia, Florida, Georgia, Kentucky, Minnesota, North Carolina, South Carolina, Tennessee, Vancouver, and Wyoming. Georgia is the only state that shows and vulnerability to Zizia trifoliata (Natureserve, 2014).

Petal color is generally yellow-green to dull yellow in montane populations but can vary to a yellow-maroon in piedmont regions. (Lindsey & Bell, 1982: 235). The nectar sugar concentration for Z. trifoliata ranges from 4.2-13.4% weight to volume (Lindsey and Bell, 1985: 234). Nectar and pollen are used to attract insect pollinators Evylaeus macoupinensis (Halictidae), Meliscaeva cinctella (Syrphidae), and Andrena ziziae (Andrenidae )(Lindsey & Bell, 1982: 234). The maroon colored petals may serve to attract Halictideae (Lindsey and Bell, 1985: 243). Z. trifoliata had 50-80% fruit sets per plant and was correlated to percentage of stigmas pollinated (Lindsey and Bell, 1985: 241-2).


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