Cymopterus

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]

Cymopterus
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

Systematics

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]

Cymopterus acaulis
Cymopterus nivalis
  • Cymopterus lapidosus – talus springparsley
  • Cymopterus longipes – longstalk springparsley, sprawling springparsley
  • Cymopterus macrorhizus – bigroot springparsley
  • Cymopterus megacephalus – largeleaf springparsley
  • Cymopterus minimus – Cedar Breaks springparsley
  • Cymopterus montanus – Mountain springparsley
  • Cymopterus newberryi – sweetroot springparsley, sticky springparsley
  • Cymopterus nivalis – snowline springparsley, Elko springparsley
  • Cymopterus panamintensis – Panamint springparsley
  • Cymopterus planosus – Rocky Mountain springparsley
  • Cymopterus purpureus – purple springparsley, Colorado Plateau springparsley, variable springparsley
  • Cymopterus ripleyi – Ripley's springparsley
  • Cymopterus rosei – Rose's springparsley
  • Cymopterus terebinthinus (syn. Pteryxia terebinthina)[8][9] – turpentine wavewing
  • Cymopterus williamsii – Williams' springparsley

Formerly included here
gollark: clang/LLVM is in C++, so arguably it depends on itself (a past version, anyway).
gollark: It does more than "read and write files", that cryoapiodrone.
gollark: As planned.
gollark: Over time, tons of the stuff which people said was opaque to study (and which was ascribed to god or whatever mostly) has turned out to actually be entirely possible to study.
gollark: It's not a rhyme. It's a monoid.

References
  1. Cymopterus. USDA PLANTS.
  2. Cymopterus. The Jepson eFlora 2013.
  3. 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. Archived 2009-01-20 at the Wayback Machine Germplasm Resources Information Network (GRIN).
  7. Cymopterus. Integrated Taxonomic Information System (ITIS).
  8. Cymopterus terebinthinus. Calflora 2013.
  9. Pteryxia terebinthina. USDA PLANTS.

Further reading
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