Arthrostemma ciliatum – Pinkfringe

Arthrostemma ciliatum - Pinkfringe, Arthrostemma (pink flower)

Arthrostemma ciliatum - Pinkfringe, Arthrostemma (hypanthium fruit)

Plant Name

Scientific Name: Arthrostemma ciliatum

Synonyms: Arthrostema ciliatum, A. latifolium

Common Names: Pinkfringe, Arthrostemma

Plant Characteristics

Duration: Perennial

Growth Habit: Herb/Forb

Hawaii Native Status: Introduced. This naturalized ornamental garden plant is native to the tropical Americas.

Flower Color: Pink

Height: 3 to 13 feet (1 to 4 m) tall

Description: The flowers are up to 2 1/2 inches across and have red flower buds and 4 pink, egg-shaped, point-tipped petals that may be banded with red on the back. Each flower is followed by a red, elongated, cup-shaped fruit known as a hypanthium. The leaves have 5 or 7 longitudinal, palmate veins and are green, slightly bristly, opposite, egg-shaped to broadly lanceolate, and edged with tiny, bristly-hairy, reddish teeth. The young stems are reddish. These weedy, climbing and sprawling plants can cover and smother other plants.

Here in Hawaii, Pinkfringe grows in pastures and along forest edges and roadsides in wet to mesic (moderately wet) areas.


Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Rosidae
Order: Myrtales
Family: Melastomataceae – Melastome family
Genus: Arthrostemma Pav. ex D. Don – arthrostemma
Species: Arthrostemma ciliatum Pav. ex D. Don – pinkfringe

More About This Plant

Hawaii County Distribution Map