Asplenium antiquum
 | This article needs additional citations for verification. (March 2011) |
| Asplenium antiquum | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Aspleniaceae |
| Genus: | Asplenium |
| Species: | A. antiquum
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| Binomial name | |
| Asplenium antiquum | |
Asplenium antiquum is a fern of the group known as bird's-nest ferns. In Japanese it is known by ō-tani-watari and tani-watari.[1]
Description[]
Asplenium antiquum is an evergreen fern, 2–3 ft. (60–90 cm).[2] It has bright green, arching blades with a pointed end and a strong midrib.[2] Asplenium antiquum can readily be distinguished from the closely related Asplenium nidus by its fronds of uniform width.
Chemical composition[]
, a glycoside of the flavonol mearnsetin, can be found in A. antiquum.[3]
Taxonomy[]
A global phylogeny of Asplenium published in 2020 divided the genus into eleven clades,[4] which were given informal names pending further taxonomic study. A. antiquum belongs to the "Neottopteris clade",[5] members of which generally have somewhat leathery leaf tissue. While the subclades of this group are poorly resolved, several of them share a characteristic "bird's-nest fern" morphology with entire leaves and fused veins near the margin. A. antiquum belongs to one of these subclades, together with , , , and .[6] Other bird's-nest ferns, such as A. nidus sensu lato and A. australasicum, form a separate subclade which is not particularly closely related.[5]
Distribution[]
The fern is native to temperate East Asia, in China, Japan, Korea, and Taiwan on cliffs, dark forests, and tree trunks.[1][2] It is an IUCN endangered species in its native habitats.[1]
Cultivation[]
The fern is commonly available in the plant nursery trade as an ornamental plant in subtropical climates, and a house plant in the United States and Europe in zones 9 and 10. It requires high humidity and bright indirect light, so does best in a greenhouse or terrarium if grown indoors.[2] It needs regular watering and can do with minimal soil (similar to an orchid).[2] The soil should always be humid but not soaking wet.
References[]
- ^ a b c "Asplenium antiquum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 21 January 2018.
- ^ a b c d e Olsen, Sue. Encyclopedia of Garden Ferns. 2007.
- ^ Mearnsetin 3,7-dirhamnoside from Asplenium antiquum. Mizuo Mizuno, Yosuke Kyotani, Munekazu Iinuma, Toshiyuki Tanaka, Hiroyuki Kojima and Kunio Iwatsuki, Phytochemistry, Volume 30, Issue 8, 1991, pages 2817-2818, doi:10.1016/0031-9422(91)85158-V
- ^ Xu et al. 2020, p. 27.
- ^ a b Xu et al. 2020, p. 31.
- ^ Xu et al. 2020, p. 41.
- Xu, Ke-Wang; Zhang, Liang; Rothfels, Carl J.; Smith, Alan R.; Viane, Ronald; Lorence, David; Wood, Kenneth R.; Cheng, Cheng-Wei; Knapp, Ralf; Zhou, Lin; Lu, Ngan Thi; Zhou, Xin-Mao; Wei, Hong-Jin; Fan, Qiang; Chen, Su-Fang; Cicuzza, Daniele; Gao, Xin-Fen; Li, Wen-Bo; Zhang, Li-Bing (2020). "A global plastid phylogeny of the fern genus Asplenium (Aspleniaceae)". Cladistics. 36 (1): 22–71. doi:10.1111/cla.12384. S2CID 201197385.
External links[]
Media related to Asplenium antiquum at Wikimedia Commons
Data related to Asplenium antiquum at Wikispecies
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- Asplenium
- Ferns of Asia
- Flora of China
- Flora of Japan
- Flora of Korea
- Flora of Taiwan
- Endangered plants
- Garden plants of Asia
- House plants
- Plants described in 1929
- Fern stubs