Sphaerostephanos productus(Kaulf.) Holttum

WFO wfo-0001231182 Accepted WFO 2026-06 4 photographs CC BY

Plate 1 figs. a–d · 1 observation

This species has been photographed under an open licence only 1 time, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Sphaerostephanos productus, photographed by 呂一起(Lyu yi-chi)
fig. a 呂一起(Lyu yi-chi), CC BY 4.0 / 2021-10-20 / obs. 165124556
Sphaerostephanos productus, photographed by 呂一起(Lyu yi-chi)
fig. b 呂一起(Lyu yi-chi), CC BY 4.0 / obs. 165123551
Sphaerostephanos productus, photographed by 呂一起(Lyu yi-chi)
fig. c 呂一起(Lyu yi-chi), CC BY 4.0 / obs. 165123962
Sphaerostephanos productus, photographed by 呂一起(Lyu yi-chi)
fig. d 呂一起(Lyu yi-chi), CC BY 4.0 / obs. 165124348

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 2 botanical countries

Regions where Sphaerostephanos productus is native: Taiwan, Philippines TaiwanPhilippines
Native distribution of Sphaerostephanos productus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Taiwan TAI ASIA-TEMPERATE
Philippines PHI ASIA-TROPICAL

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 29 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Aspidium productum Kaulf.
  • Cyclosorus basilaris (Presl) Ching
  • Cyclosorus kotoensis (Hayata) W.C.Shieh
  • Cyclosorus leucadenius Copel.
  • Cyclosorus philippinensis (Baker) Copel.
  • Cyclosorus productus (Kaulf.) Ching
  • Cyclosorus pseudohirsutus (Rosenst.) Ching
  • Cyclosorus serratus Copel.
  • Cyclosorus truncatus var. kotoensis (Hayata) H.Itô
  • Cyclosorus weberi Copel.
  • Dryopteris basilaris (C.Presl) C.Chr.
  • Dryopteris kotoensis Hayata
  • Dryopteris luzonica var. puberula Christ
  • Dryopteris philippinensis (Baker) Copel.
  • Dryopteris producta (Kaulf.) C.Chr.
  • Dryopteris pseudohirsuta Rosenst.
  • Nephrodium basilare C.Presl
  • Nephrodium caudiculatum J.Sm.
  • Nephrodium philippinense Baker
  • Nephrodium productum C.Presl
  • Sphaerostephanos kotoensis (Hayata) Holttum ex Kuo
  • Sphaerostephanos punctatus Holttum
  • Thelypteris endorica Christenh.
  • Thelypteris kotoensis (Hayata) K.Iwats.

and 5 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.