Peritoma

Peritoma is a genus in the plant family Cleomaceae with six species of shrubs and annuals.[1][2][3] All six species are native to North America, concentrated mostly in southern California, and with large populations in the rest of the western United States and northwestern Mexico.[4][5] The name "Peritoma" is derived from the Ancient Greek words "peri" (περί), meaning "about" or "around,"[6] and "toma" or "tome" (τομή), meaning "cut."[1][7] The name "cut-around" refers to the calyx that splits around its middle as the fruit dehisces.[1]

The seedpods of Peritoma arborea, showing the calyx seam that splits when the fruit matures, hence Peritoma ("cut-around").

Peritoma
Peritoma arborea growing in Wilson Canyon in Joshua Tree National Park, California.
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Brassicales
Family:
Cleomaceae
Genus:
Peritoma

DC.

Species[1]
  • Peritoma arborea
    • Peritoma arborea var. angustata
    • Peritoma arborea var. arborea
    • Peritoma arborea var. globosa
  • Peritoma jonesii
  • Peritoma lutea
  • Peritoma platycarpa
  • Peritoma serrulata

References
  1. "Peritoma". ucjeps.berkeley.edu. Retrieved 2021-05-21.
  2. "Peritoma". www.gbif.org. GBIF. Retrieved 2021-05-29.
  3. "ITIS Standard Report Page: Peritoma". www.itis.gov. Itis.gov. Retrieved 2021-05-29.
  4. "Peritoma in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2021-05-21.
  5. "Observations". iNaturalist. Retrieved 2021-05-21.
  6. "Henry George Liddell, Robert Scott, A Greek-English Lexicon, περί". www.perseus.tufts.edu. Retrieved 2021-05-21.
  7. "τομή - Wiktionary". en.wiktionary.org. Retrieved 2021-05-21.


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