Article · Wikipedia archive · Last revised Jul 6, 2026

Sechium

Sechium was a genus of plants now subsumed into the genus Sicyos: also placed in the tribe Sicyoeae of the gourd family, Cucurbitaceae. Its best known member was the edible and widely cultivated chayote.

Last revised
Jul 6, 2026
Read time
≈ 1 min
Length
230 w
Citations
2
Source
Sechium
Sechium tacaco
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Cucurbitales
Family: Cucurbitaceae
Subfamily: Cucurbitoideae
Tribe: Sicyoeae
Genus: Sechium
P.Browne

Sechium was a genus of plants now subsumed into the genus Sicyos:1 also placed in the tribe Sicyoeae of the gourd family, Cucurbitaceae. Its best known member was the edible and widely cultivated chayote (now Sicyos edulis).

Species

Several species formerly placed in genus Sechium have now been placed in other genera. Several other species names are unplaced – "names that cannot be accepted, nor can they be put into synonymy".2

Formerly placed here

  • Cayaponia amazonica (Poepp. & Endl.) Cogn. (as Sechium amazonicum Poepp. & Endl.)
  • Cayaponia peruviana (Poepp. & Endl.) Cogn. (as Sechium peruvianum Poepp. & Endl.)
  • Microsechium compositum Donn.Sm. (as Sechium compositum (Donn.Sm.) C.Jeffrey)
  • Microsechium hintonii Paul G.Wilson (as Sechium hintonii (Paul G.Wilson) C.Jeffrey)
  • Microsechium palmatum (Ser.) Cogn. (as Sechium palmatum Ser.)
  • Sicyos edulis (as Sechium edule (Jacq.) Sw. or Sechium americanum Poir.) – chayote or christophene

Unplaced species names

  • Sechium chinantlense Lira & F. Chiang
  • Sechium mexicanum Lira & M.Nee
  • Sechium panamense (Wunderlin) Lira & F.Chiang
  • Sechium pittieri (Cogn.) C.Jeffrey
  • Sechium tacaco (Pittier) C.Jeffrey
  • Sechium talamancensis (Wunderlin) C.Jeffrey
  • Sechium venosum (L.D.Gómez) Lira & F.Chiang
  • Sechium villosum (Wunderlin) C.Jeffrey
References

References

  1. POWO: retrieved 11 March 2024
  2. Checklist for Sechium at World Checklist of Vascular Plants (WCVP). Retrieved 10 June 2024.