Plate 1 figs. a–h · 4 observations
This species has been photographed under an open licence only 4 times, 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.
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 5 botanical countries
| Region | TDWG code | Continent |
|---|---|---|
| Borneo | BOR | ASIA-TROPICAL |
| Philippines | PHI | |
| Sulawesi | SUL | |
| Sumatera | SUM | |
| Taiwan | TAI | ASIA-TEMPERATE |
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 15 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.
- Cryptosorus decrescens (Christ) Nakai ex H.Itô
- Cryptosorus decrescens var. blechnifrons (Hayata) Nakai ex H.Itô
- Ctenopteris curtisii (Baker) Copel.
- Grammitis blechnifrons (Hayata) Christenh.
- Grammitis curtisii (Baker) Christenh.
- Grammitis decrescens (Christ) Christenh.
- Oreogrammitis blechnifrons (Hayata) T.C.Hsu
- Oreogrammitis elata Parris
- Oreogrammitis gibbsiae Parris
- Polypodium curtisii Baker
- Polypodium decrescens Christ
- Polypodium decrescens var. blechnifrons Hayata
- Themelium blechnifrons (Hayata) Parris
- Themelium curtisii (Baker) Parris
- Themelium decrescens (Christ) Parris
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
- 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.