Brook Floater vs Ciliated German Pellitory

Alasmidonta varicosa compared with Anacyclus ciliatus

Key Differences

• Brook Floater is Vulnerable while Ciliated German Pellitory is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Ciliated German Pellitory
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Magnoliopsida (Dicots)
Order	Unionida (Unionida)	Asterales (Daisies & Sunflowers)
Family	Unionidae	Asteraceae (Daisy Family)
Genus	Alasmidonta	Anacyclus
Species	Alasmidonta varicosa	Anacyclus ciliatus

Conservation Status

Brook Floater

VU — Vulnerable

Ciliated German Pellitory

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Ciliated German Pellitory
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.

Ciliated German Pellitory

Habitat

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

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.

Ciliated German Pellitory

Ciliated German pellitory (Anacyclus ciliatus) is an annual or short-lived perennial herb in the family Asteraceae, native to the Mediterranean Basin. It produces prostrate to ascending stems bearing finely divided, feathery leaves and daisy-like flower heads with white ray florets and a yellow disc. The species grows in dry, open habitats such as rocky slopes, garrigue, abandoned fields, roadsides, and coastal scrub, preferring calcareous soils with low fertility and good drainage. Its distribution spans southern Europe, North Africa, and the Near East, encompassing the core of the Mediterranean climatic zone. Anacyclus ciliatus is classified as Least Concern, with widespread populations across its native range. The genus Anacyclus includes several species with similar morphology, and its taxonomy has been subject to revision. Like many Mediterranean annuals, ciliated German pellitory completes its life cycle during the cool, wet winter and spring months, producing abundant seed before the summer drought. It is a component of traditional Mediterranean dry grassland and rocky vegetation communities. Some Anacyclus species have been investigated for medicinal properties, particularly root extracts showing anti-inflammatory and analgesic activity. Conservation of Mediterranean garrigue and dry grassland habitats benefits this species alongside many other endemic plants of the region.