Singapore Government Logo

A Singapore Government Agency Website

Back

Hoya darwinii Loher

Family Name: Apocynaceae
Semi Shade Moderate Water Occasional Misting Suitable for Hanging Baskets Ornamental Flowers Ornamental Leaves Climber, Vine and Liana Epiphyte

Name

Family Name
Genus Epithet
Species Epithet
Name Authority
Comments

Classifications and Characteristics

Plant Growth Form Climber, Vine & Liana, Epiphyte
Lifespan (in Singapore) Perennial

Biogeography

Native Distribution Philippines (Luzon, Panay)
Preferred Climate Zone Tropical

Description and Ethnobotany

Growth Form A much branched species with modified leaves that houses ants
Foliage Leaves light green, dimorphic. Normal leaves elliptic, glabrous; venation inconspicuous. Modified leaves bullate, 2 or more leaves on opposite sides of a series of shortened  leaf internodes forming a globose pouch. Modified pouch enclosing part of the stem; forming a cavity for ants to nest (ant domatia).
Flowers Corolla lobes salmon to dark pink, reflexed at maturity. Corona cream or white, tinged with pink or rose pink towards the center. Corono lobes erect
Others - Plant Morphology This species illustrates the example of ant-plant mutualism (where both organisms benefit)- ants find shelter within the leaf cavity (i.e. domatia), whereas the plant benefits from the nitrogen rich waste material that is left behind by the ants (ant carton).
Similar Hoya mitrata from South East Asia (Thailand, Malaysia, Borneo, Sumatra) is another myrmecotrophic species with modified leaves that act as ant domatia (i.e. ant housing). The clustered leaves, however, do not form globose pouches, but form an ovoid domatium structure.

Landscaping Features

Desirable Plant Features Ornamental Flowers, Ornamental Foliage
Landscape Uses Small Gardens, Container Planting, Hanging Basket
Usage Hazard - Cons Remarks Avoid contact with sap as it may cause skin irritation in certain individuals. Keep plants away from children and pets as sap could be toxic.

Fauna, Pollination and Dispersal

Pollination Method(s) Biotic (Fauna)

Plant Care and Propagation

Light Preference Semi-Shade
Water Preference Moderate Water, Occasional Misting
Pest(s) Sucking Insects
Propagation Method Stem Cutting

Foliar

Foliage Retention Evergreen
Mature Foliage Colour(s) Green, Green - Light Green, Red
Mature Foliage Texture(s) Smooth

Floral (Angiosperm)

Flower Colour(s) Pink
Flower Texture(s) Smooth
Flower Grouping Cluster / Inflorescence
Flowering Period After Rain
Flower Lifespan on Plant Several Days

Image Repository

Images

Others

Master ID 31003
Species ID 5390
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: 20 August 2021.
Share