Coastal White Ash vs Common White Ash

Bersama swinnyi compared with Bersama tysoniana

Taxonomic Classification

Rank	Coastal White Ash	Common White Ash
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Geraniales (Geraniales)	Geraniales (Geraniales)
Family same	Melianthaceae	Melianthaceae
Genus same	Bersama	Bersama
Species	Bersama swinnyi	Bersama tysoniana

Evolutionary Relationship

Coastal White Ash and Common White Ash share a common ancestor at the Genus level: Bersama.

Conservation Status

Coastal White Ash

LC — Least Concern

Common White Ash

LC — Least Concern

Physical Characteristics

Attribute	Coastal White Ash	Common White Ash
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal White Ash

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Common White Ash

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Coastal White Ash

Coastal white ash (Bersama swinnyi) is an evergreen tree or shrub in the family Melianthaceae, endemic to the coastal and riverine forests of KwaZulu-Natal and the Eastern Cape in South Africa. It grows along forest margins, riverbanks, and in moist kloofs in coastal and scarp forest, typically in well-watered, sheltered sites. The species bears pinnate leaves with opposite leaflets and produces racemes of small white flowers followed by capsular fruits that split open to reveal seeds with red or orange arils. Like other members of the Bersama genus, it plays a role in forest succession and provides food for birds that consume its arillate seeds. Coastal white ash is assessed as Least Concern by the IUCN, with populations found across a broad band of KwaZulu-Natal coastal forest. However, this habitat type has been significantly reduced in extent due to timber harvesting, agricultural conversion, and coastal development. The species is occasionally cultivated in South African gardens for its ornamental appearance and wildlife value. It forms part of the rich forest flora characteristic of the biologically diverse subtropical coastal forests of the eastern seaboard.

Common White Ash

<em>Bersama tysoniana</em>, commonly known as the common white ash or Tyson's bersama, is a tree in the family Melianthaceae, native to southern Africa. It is classified as Least Concern by the IUCN. The species is found in forest margins, riverine woodland, and moist montane habitats within its native range on the African continent, where it typically grows as a small to medium-sized tree. <em>Bersama tysoniana</em> produces pinnately compound leaves with numerous leaflets, small white to cream-colored flowers arranged in terminal racemes, and distinctive capsular fruits that split to reveal seeds with fleshy orange-red arils. The arils are attractive to birds, which serve as the primary seed dispersers, facilitating natural regeneration within forest ecosystems. The wood is reportedly hard and durable, and the plant has been used in traditional medicine within its native range. Geographic range details and associated country records for this particular entry remain incompletely documented in available data sources. Biological traits including average lifespan, tree height, and mass remain poorly documented in standardized databases. Ecologically, <em>Bersama tysoniana</em> contributes to the structural complexity of southern African forest edge communities and supports a range of frugivorous birds and invertebrates through its fruit production, playing a modest but consistent role in forest food webs and seed dispersal networks.