Twining screwstem (Bartonia paniculata iodandra)
Description
Twining screwstem is a very inconspicuous annual or biennial that is probably a saprophytic mycotroph, that is, it gets most of its nutrients from a mutualistic fungus that feeds on rotting plant material. There is some speculation that it may be parasitic or hemiparasitic, obtaining nutrients from the roots of other plants through a fungal intermediary, but tests are lacking. It is found in southern New England in swamps, borrow pits and meadows.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Magnoliopsida
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Order: Gentianales
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Family: Gentianaceae
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Genus: Bartonia
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