Onychium

Onychium
Onychium japonicum growing in Japan
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Family:	Pteridaceae
Subfamily:	Pteridoideae
Genus:	Onychium Kaulf. [1]
Type species
Onychium capense Kaulf.
Species
See text
Synonyms
LeptostegiaDon

Onychium is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. ^[2]

Phylogeny

As of December 2019 ^[update] , the Checklist of Ferns and Lycophytes of the World recognized the following species and hybrids: ^[3]

Nitta et al. 2022 [4] and Fern Tree of life [5]	Other species include:
Onychium O. siliculosum (Desv.) C.Chr. O. tenuifrons Ching O. cryptogrammoides Christ O. plumosum Ching O. moupinense Ching O. japonicum (Thunb.) Kunze (Japanese claw fern, carrot fern) O. lucidum (D.Don) Spreng.	O. divaricatum(Poir.) Alston O. kholianumFraser-Jenk. & S.Matsumoto O. ×matsumotoiFraser-Jenk. & Kandel O. vermaeFraser-Jenk. & Khullar

References

1. "Onychium Kaulf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-12-28
2. PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi: 10.1111/jse.12229 , S2CID   39980610
3. Hassler, Michael & Schmitt, Bernd (November 2019), "Onychium", Checklist of Ferns and Lycophytes of the World, 8.11, retrieved 2019-12-28
4. Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13 909768. doi: 10.3389/fpls.2022.909768 . PMC   9449725 . PMID   36092417.
5. "Tree viewer: interactive visualization of FTOL". FTOL v1.7.0 (GenBank release 261). 2024. Retrieved 1 May 2025.