Cymopterus

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Cymopterus
Cymopterus newberryi 1.jpg
Cymopterus newberryi
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Apiales
Family: Apiaceae
Tribe: Selineae
Genus: Cymopterus
Raf., 1819
species

35-50, see text

Cymopterus is a genus of perennial plants in the family Apiaceae native to western North America. They are commonly known as the springparsleys.[1] They are mostly stemless, taprooted perennial herbs with leaves at ground level and flowering scapes bearing yellow, white, or purple flowers.[2]

Systematics[edit]

The taxonomy of this genus is confused even after many decades of study.[3] Authors have organized it in different ways, sometimes including several closely related Apiaceae genera within it, as the delimitations of the genus and its relationship with others are unclear.[3] It is very polyphyletic, and its limits are not well supported by evidence.[3] Genera recently segregated from Cymopterus include Vesper, six plants with morphological characters that are well-defined and easily separated from Cymopterus; the group has been separated before, but was reintegrated during repeated reorganizations of the genus.[4]

There are perhaps 35[5] to 50[2] species in the genus, but the count changes constantly.

Species include:[1][6][7]

Formerly included here[edit]

References[edit]

  1. ^ a b Cymopterus. USDA PLANTS.
  2. ^ a b Cymopterus. The Jepson eFlora 2013.
  3. ^ a b c Sun, F. and S. R. Downie. (2004). A molecular systematic investigation of Cymopterus and its allies (Apiaceae) based on phylogenetic analyses of nuclear (ITS) and plastid (rps16 intron) DNA sequences. South African Journal of Botany 70(3), 407-16.
  4. ^ Hartman, R. L. and G. L. Nesom. (2012). Taxonomy of the genus Vesper (Apiaceae). Phytoneuron 94 1-9.
  5. ^ Downie, S. R., et al. (2002). Polyphyly of the spring-parsleys (Cymopterus): molecular and morphological evidence suggests complex relationships among the perennial endemic genera of western North American Apiaceae. Canadian Journal of Botany 80(12), 1295-1324.
  6. ^ GRIN Species Records of Cymopterus. Germplasm Resources Information Network (GRIN).
  7. ^ Cymopterus. Integrated Taxonomic Information System (ITIS).
  8. ^ Cymopterus terebinthinus. Calflora 2013.
  9. ^ Pteryxia terebinthina. USDA PLANTS.

Further reading[edit]