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 12 botanical countries
| Region | TDWG code | Continent |
|---|---|---|
| India | IND | ASIA-TROPICAL |
| Jawa | JAW | |
| Lesser Sunda Is. | LSI | |
| Myanmar | MYA | |
| Philippines | PHI | |
| Sri Lanka | SRL | |
| Sulawesi | SUL | |
| Vietnam | VIE | |
| Japan | JAP | ASIA-TEMPERATE |
| Korea | KOR | |
| Nansei-shoto | NNS | |
| Taiwan | TAI |
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.
Where it actually grows measured, from 238 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | 1.4 °C | 7.3 °C | 12.4 °C |
| Warmest month, mean daily high | 18.8 °C | 25.7 °C | 30.6 °C |
| Annual rainfall | 2,294 mm | 3,741 mm | 4,616 mm |
| Rainfall in the driest quarter | 150 mm | 237 mm | 808 mm |
It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 238 research-grade observations of Arachniodes amabilis that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.
This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.
Also published as 16 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.
- Arachniodes amabilis var. yakusimensis (H.Itô) Ohwi
- Arachniodes okinawensis Nakaike
- Arachniodes rhomboidea var. yakushimensis (H.Itô) W.C.Shieh
- Arachniodes yakusimensis (H.Itô) Nakaike
- Aspidium amabile Blume
- Byrsopteris amabilis (Blume) Morton
- Byrsopteris amabilis var. yakusimensis (H.Itô) Sa.Kurata
- Diplazium grammitoides f. yakusimense H.Itô
- Dryopteris amabilis (Blume) Kuntze
- Lastrea amabilis (Blume) T.Moore
- Lunathyrium conilii var. yakusimense (H.Itô) Seriz.
- Nephrodium amabile (Blume) Hand.-Mazz.
- Polystichopsis amabilis (Blume) Tagawa
- Polystichum amabile (Blume) J.Sm.
- Rumohra amabilis (Blume) Ching
- Rumohra amabilis var. yakusimensis H.Ito
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.