Brook Floater vs Cokerite Palm

Alasmidonta varicosa compared with Attalea maripa

Key Differences

• Brook Floater is Vulnerable while Cokerite Palm is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Cokerite Palm
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Liliopsida (Monocots)
Order	Unionida (Unionida)	Arecales (Arecales)
Family	Unionidae	Arecaceae
Genus	Alasmidonta	Attalea
Species	Alasmidonta varicosa	Attalea maripa

Conservation Status

Brook Floater

VU — Vulnerable

Cokerite Palm

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Cokerite Palm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

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

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Cokerite Palm

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Brazil and Colombia.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Cokerite Palm

The Cokerite Palm (Attalea maripa), also known as Maripa Palm or Inajá, is a solitary, tall-growing feather palm in the family Arecaceae, distributed across the lowland rainforests, forest edges, and floodplain forests of Amazonian South America, primarily in Brazil and Colombia, with additional records from Venezuela, Guyana, Suriname, French Guiana, Peru, Bolivia, and Ecuador. Trees typically reach 15–25 metres in height, producing large pinnate fronds and impressive clusters of ovoid fruits with an oily, yellow-orange outer mesocarp surrounding a hard-shelled nut. The palm is widely used by indigenous and traditional communities throughout Amazonia: the oil-rich mesocarp of the fruits is eaten fresh and used to produce a nutritious food paste; the apical bud (palm heart) is consumed; the young leaves are used for basket weaving and thatching; and the trunk wood serves in construction. Attalea maripa frequently regenerates vigorously in disturbed forest and pasture margins, indicating tolerance for light disturbance. It plays an important ecological role as a food source for large frugivores including tapirs, peccaries, and macaws that help disperse its large seeds. The species is assessed as Least Concern by the IUCN, with stable populations across its broad Amazonian range.