Ageratum is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae. Most species are native to Central America and Mexico but four are native to the United States.
Lomatium is a genus in the family Apiaceae. It consists of about 100 species native to western Northern America and northern Mexico. Its common names include biscuitroot, Indian parsley, and desert parsley. It is in the family Apiaceae and therefore related to many familiar edible species such as carrots and celery; some Lomatium species are extensively used by Native Americans in the inland Northwest as a staple food.
Vesper multinervatus, synonym Cymopterus multinervatus, is a species of flowering plant in the carrot family Apiaceae, known by the common name purplenerve springparsley. It is a perennial herb native to the southwestern United States, including the desert regions. It is stemless, producing leaves and inflorescence at ground level from a taproot. The leaves are erect on petioles of a few centimeters in length, with a fleshy blade dissected into waxy multilobed leaflets. The inflorescence arises on a stout purple or greenish peduncle up to about 14 centimeters tall. At the top is a rounded cluster of purple flowers sheathed in purple-veined bracts.
Edward William Nelson was an American naturalist and ethnologist. A collector of specimens and field naturalist of repute, he became a member of several expeditions to survey the fauna and flora. He was part of a team with Clinton Hart Merriam that took part in the Death Valley Expedition. He also explored the Yosemite Valley. A number of vertebrate species are named after him.
Aletes has been regarded a genus of flowering plants in the family Apiaceae, all of which are endemic to North America. As of December 2022, Plants of the World Online regarded Aletes as a synonym of Cymopterus, while GRIN Taxonomy regarded it as a possible synonym of that genus.
Conioselinum is a genus of flowering plant in the family Apiaceae, native to Eurasia and North America. Its species are erect perennial plants with deeply toothed compound leaves and umbels of white flowers. Plants of this genus are known commonly as hemlock-parsley.
Cymopterus is a genus of perennial plants in the family Apiaceae native to western North America. They are commonly known as the springparsleys. They are mostly stemless, taprooted perennial herbs with leaves at ground level and flowering scapes bearing yellow, white, or purple flowers.
Captain John Donnell Smith of Baltimore, Maryland was a biologist and taxonomist. He was also an officer in the Confederate army.
Lomatium donnellii is a perennial herb of the family Apiaceae, in the Western United States.
Aletes humilis is a species of flowering plant in the carrot family known by the common names Colorado aletes and Larimer aletes. It is native to Colorado in the United States; it is also known from Wyoming, but there are no recent collections there.
Prionosciadium is a genus in the carrot family, Apiaceae. It is endemic to Mexico. The plants are biennial herbs with large taproots.
Lomatium plummerae is a formerly recognized species of plant in the carrot family (Apiaceae). When recognized, it was subdivided into a number of subspecies and varieties. As of August 2021, Plants of the World Online considers the species itself and the variety helleri to be synonyms of Lomatium donnellii, and the varieties austiniae and sonnei as synonyms of Lomatium austiniae, whereas the Jepson eFlora considers the species and the varieties austiniae and sonnei to be synonyms of Lomatium donnellii.
Spermolepis is a genus of flowering plants belonging to the family Apiaceae.
Harbouria is a monotypic genus of flowering plants belonging to the family Apiaceae. It contains just one species, Harbouria trachypleura(A.Gray) J.M.Coult. & Rose, native to the states of Colorado, New Mexico and Wyoming.
Donnellsmithia is a genus of flowering plants belonging to the family Apiaceae.
Myrrhidendron is a genus of flowering plants belonging to the family Apiaceae.
Rhodosciadium is a genus of flowering plants belonging to the family Apiaceae.
Rhysopterus is a genus of flowering plants belonging to the family Apiaceae.
Neonelsonia is a monotypic genus of flowering plants belonging to the family Apiaceae. It just contains one species, Neonelsonia acuminata, native to southern Mexico, Colombia, Costa Rica, Ecuador, Guatemala, Panamá, Peru and Venezuela. It is part of the tribe Selineae.
