Broad Scalewort vs Coast Myall

Porella obtusata compared with Acacia binervia

Key Differences

• Broad Scalewort is Endangered while Coast Myall is Least Concern.

Taxonomic Classification

Rank	Broad Scalewort	Coast Myall
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Magnoliophyta (Flowering Plants)
Class	Jungermanniopsida (Jungermanniopsida)	Magnoliopsida (Dicots)
Order	Porellales (Porellales)	Fabales (Legumes & Allies)
Family	Porellaceae	Fabaceae
Genus	Porella	Acacia
Species	Porella obtusata	Acacia binervia

Evolutionary Relationship

Broad Scalewort and Coast Myall share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Broad Scalewort

EN — Endangered

Coast Myall

LC — Least Concern

Physical Characteristics

Attribute	Broad Scalewort	Coast Myall
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad Scalewort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Coast Myall

Habitat

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

Broad Scalewort

The Broad Scalewort (Porella obtusata) is a species in the genus Porella. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Coast Myall

Coast myall (Acacia binervia) is a small to medium tree or tall shrub in the family Fabaceae, native to coastal and near-coastal regions of New South Wales and Queensland in eastern Australia. It grows in coastal heath, dry sclerophyll woodland, and scrubby vegetation on sandy or rocky substrates, often in association with banksias and eucalypts. Like most Australian wattles, coast myall produces phyllodes—flattened leaf-stalks functioning as leaves—rather than true compound leaves in mature plants. The dark green phyllodes are distinctive, with two main veins, giving rise to the species name binervia. Golden-yellow, spherical flower heads are produced in winter to spring, attracting native bees. The genus Acacia sensu lato encompasses hundreds of species across Australia and globally, many of which play important ecological roles in nitrogen cycling through root symbioses. Coast myall is assessed as Least Concern by the IUCN. It is sometimes planted in coastal revegetation projects for its tolerance of poor, sandy soils, drought, and salt-laden winds.