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Asplenium longissimum Blume
Family Name: | Aspleniaceae |
Synonyms: | Asplenium longicauda |
Common Name: | Spleenwort |
Asplenium longissimum or Spleenwort is a fern that grows terrestrially or as an epiphyte. Fronds are long and drooping, up to 1 m long or more. Each leaflet is lance to broadly lance-shaped, long tapered tip, boxy to wedge-shaped base with ear-like lobes. The stalk is purple to brown coloured, up to 20 cm long. The species epithet, longissimum is used to describe the species characteristics of having very long fronds.
Name
Classifications and Characteristics
Plant Division | Ferns & Lycophytes (Non-Seed Vascular Plants) (Fern) |
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Plant Growth Form | Herbaceous Plant |
Lifespan (in Singapore) | Perennial |
Mode of Nutrition | Autotrophic |
Plant Shape | Weeping / Pendulous |
Biogeography
Native Distribution | Southeast Asia |
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Native Habitat | Terrestrial |
Preferred Climate Zone | Tropical |
Local Conservation Status | Native to Singapore (Least Concern (LC)) |
Description and Ethnobotany
Growth Form | It is a fern that is found as a terrestrial or epiphytic plant. It produces short rhizome measuring about 5 mm wide, densely scaly. |
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Foliage | Its drooping long fronds measures up to 1 m long or more. Small plantlets (bulbils) are produced on the stalk near the tip of the frond. Each leaflet (pinnae) is lance to broadly lance shaped with a long tapered tip and toothed margins. Two rows of ridges are found along the top surface of the midrib. The base is boxy, wedge-shaped to round with irregular ear-like lobes on both sides, black forked scales are found on the underside of the leaflet. The stalk (stipe) is purple to brown coloured, densely covered in dense scales measuring up to 20 cm long. Scales are flat, lattice-like, packed tightly together. |
Others - Plant Morphology | Sori are produced on both sides along the midrib, starting from the midrib towards the margin. They are long, linear to slightly curved |
Habitat | Occur on dry ground along the path in light shade at about 200 m altitude |
Etymology | Its genus Asplenium, means without spleen and is usually a reference for the fern to cure spleen ailments. The species epithet longissimum, refers to the fern's character of having very long fronds. |
Landscaping Features
Landscape Uses | Small Gardens, Container Planting |
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Fauna, Pollination and Dispersal
Seed or Spore Dispersal | Abiotic |
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Plant Care and Propagation
Light Preference | Semi-Shade |
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Water Preference | Moderate Water |
Plant Growth Rate | Moderate to Slow |
Rootzone Tolerance | Moist Soils, Fertile Loamy Soils, Well-Drained Soils |
Propagation Method | Spore |
Foliar
Foliage Retention | Evergreen |
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Mature Foliage Colour(s) | Green |
Foliar Type | Compound |
Foliar Arrangement Along Stem | Alternate |
Foliar Attachment to Stem | Petiolate |
Foliar Shape(s) | |
Foliar Venation | Pinnate / Net |
Foliar Margin | Serrate / Toothed |
Foliar Apex - Tip | Acuminate |
Foliar Base | Cuneate, Truncate / Square, Rounded / Obtuse |
Non - Foliar and Storage
Trunk Type (Non Palm) | Non Woody |
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Root Type | Underground (Fibrous Root) |
Specialised Storage Organ(s) | Underground (Rhizome) |
References
References | Royal Botanic Gardens, Kew (continuously updated). Plants of the World Online | Kew Science. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:17046410-1. Accessed 13 July 2022. Tagawa, M. & Iwatsuki, K. (1985). Pteridophytes. Flora of Thailand, 3(2), pp. 281-282. Forest Herbarium, Royal Forest Department |
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Image Repository
Others
Master ID | 244 |
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Species ID | 1540 |
Flora Disclaimer | The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. |