Conioselinum is a genus of flowering plants in the carrot family, Apiaceae, placed in the order Apiales alongside close relatives such as Angelica and Ligusticum. It was first published by Fischer ex Hoffmann in 1814. GBIF's taxonomic backbone currently records the genus's status as doubtful, reflecting some ongoing uncertainty in its circumscription relative to neighboring umbellifer genera, though roughly 17–19 species are recognized across various sources.
Species of Conioselinum are erect perennial herbs with deeply toothed, compound leaves and the characteristic umbels of small white flowers typical of the carrot family. Plants in this genus share the common name "hemlock-parsley," a nod to their finely divided, fern-like foliage reminiscent of poison hemlock and other members of Apiaceae.
The genus has a broad Northern Hemisphere distribution spanning both Eurasia and North America. Records span a wide range of regions, from Alaska, the Aleutian Islands, British Columbia, and the western United States (Arizona, California, Colorado) in North America, to Central Asia, China, and across European and Siberian Russia in Eurasia, indicating the genus favors temperate and boreal habitats across this vast range.
Among its species, Conioselinum chinense (Chinese hemlock-parsley) is a well-known North American representative, while Conioselinum tataricum, described by Hoffmann, is closely tied to the genus's original circumscription. Other species, including C. mexicanum and C. morrisonense, extend the genus's range into Mexico and East Asia (Taiwan) respectively, illustrating its wide geographic spread.
Distribution
Conioselinum is native to Eurasia and North America. GBIF occurrence and distribution records corroborate this broad range, spanning from Alaska, the Aleutian Islands, and western North America (British Columbia to California, Arizona, and Colorado) to Central Asia, China, and European/Siberian Russia.
Taxonomy Notes
Conioselinum was published by Fischer ex Hoffmann in Genera Plantarum Umbelliferarum (1814). It belongs to family Apiaceae, order Apiales. GBIF's backbone taxonomy currently flags the genus's status as "doubtful," and records 19 descendant taxa.
