Singapore Government Logo

A Singapore Government Agency Website

Amblovenatum opulentum


Amblovenatum opulentum (Kaulf.) J.P.Roux

Family Name: Thelypteridaceae

Amblovenatum opulentum is a terrestrial fern native to Singapore. The pinnate frond have up to 25 pairs of leaflets with hook-like lobes. Similarly, the basal part of the apex is deeply lobed, gradually gets shallow toward the end. The bumpy texture on the upper surface is attributed to the sori impressed on the underside.


Family Name
Genus Epithet
Species Epithet
Name Authority
Species Summary

Classifications and Characteristics

Plant Division Ferns & Allies (Non-Seed Vascular Plants) (Fern)
Plant Growth Form Herbaceous Plant


Native Distribution East Africa, South India, Sri Lanka, Myanmar, Thailand, Malesia, Northern Queensland to Pacific Islands
Native Habitat Terrestrial (Freshwater Swamp Forest, Primary Rainforest, Secondary Rainforest)
Preferred Climate Zone Tropical
Local Conservation Status Native to Singapore (Least Concern (LC))

Description and Ethnobotany

Growth Form It is a terrestrial fern with short-creeping rhizomes, large drooping fronds
Foliage The frond is pinnate, consist of up to 25 pairs of leaflets or more, held on a long reddish stalk of up to 70 cm. Each leaflet measures to 25 cm long by 2.5 cm wide with hook-like lobes. The tip (apex) of the frond is narrow, sharp, deeply lobed at its basal part.
Reproductive Parts - non-flowering plant The sori are confined to the lobes of the leaflets, circular, protected by a thin indusia. Sori are slightly impressed on the underside which attributes to the bumps on the upper surface.
Habitat Occurs in secondary swamps, dry moutain slopes in light shade usually at low altitudes.
Cultivation It can be propagated by spores.

Landscaping Features

Plant & Rootzone Preference - Tolerance Fertile Loamy Soils, Moist Soils, Well-Drained Soils

Plant Care and Propagation

Light Preference Semi-Shade
Water Preference Moderate Water
Plant Growth Rate Moderate to Slow
Propagation Method Spore


Foliar Type Compound (Bipinnate)
Foliar Shape(s) Non-Palm Foliage (Falcate / Curved, Linear, Lanceolate)
Foliar Venation Pinnate / Net
Foliar Margin Pinnately Lobed / Pinnatifid
Foliar Apex - Tip Acuminate
Foliar Base Oblique / Asymmetrical

Non - Foliar and Storage

Stem Type & Modification Herbaceous
Root Type Underground (Fibrous Root)
Specialised Storage Organ(s) Underground (Rhizome)


References Holttum, R.E. (1959). Amphineuron. In: Holttum, R.E. (ed.) ThelypteridaceaeFlora Malesiana, ser. 2, Pteridophyta, vol. 1, pt. 5. pp. 548. Leiden: Rijksherbarium.

Image Repository



Master ID 33574
Species ID 7988
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.
Species record last updated on: 06 February 2023.