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Zizia aurea
Also called Golden alexanders, Golden Alexander, Common Alexanders, Golden Meadowparsnip
Zizia aurea (golden alexanders, golden zizia) is a flowering herbaceous perennial plant of the carrot family Apiaceae. It is native to eastern Canada and the United States, from the eastern Great Plains to the Atlantic Coast. The genus is named for Johann Baptist Ziz, a German botanist. The common name is based on the similarity to alexanders (Smyrnium olusatrum), another member of the carrot family from coastal areas in Europe and Northern Africa.
Care should be taken to thoroughly wash skin exposed to the sap of broken plant tissues, as subsequent exposure to the UV in sunlight may cause burns and blistering - as in the case of several species of the related Apiaceous genus Heracleum - notably H. mantegazzianum, the giant hogweed.
The principal compound present in Z. aurea responsible for the phototoxicity of this species is the furanocoumarin xanthotoxin, a.k.a. methoxsalen, which has also been isolated from a number of other species belonging to the family Apiaceae - notably Ammi majus.
Golden alexander is native to the United States and Canada. It grows from New Brunswick to Saskatchewan, south to Florida and Texas, and west to Montana. It is found in a broad variety of habitats, such as moist black soil prairies, openings in moist to mesic woodlands, savannas, thickets, limestone glades and bluffs, power line clearings in woodland areas, abandoned fields, and wet meadows. It can tolerate dry summers even though it prefers wet habitats. It is hardy in USDA zones 4–9.
Native Americans in the United States and Canada put the plant to a variety of medicinal uses: the leaves and flowers were used to prepare a tea believed to be beneficial in the treatment of disorders of the female reproductive system, while the root, believed to possess hemostatic and hypnotic properties, was also crushed and used to treat sharp pains, used to prepare poultices for the treatment of inflammations and sores and infused to brew a tea considered to have febrifugal virtues.
Text excerpted from the Wikipedia article Zizia aurea by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
