common bubble snail vs Complex-leaved Dandelion

Akera bullata compared with Taraxacum subundulatum

Key Differences

• common bubble snail is Least Concern while Complex-leaved Dandelion is Not Evaluated.

Taxonomic Classification

Rank	common bubble snail	Complex-leaved Dandelion
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Gastropoda (Gastropoda)	Magnoliopsida (Dicots)
Order	Aplysiida (Aplysiida)	Asterales (Daisies & Sunflowers)
Family	Akeridae	Asteraceae (Daisy Family)
Genus	Akera	Taraxacum
Species	Akera bullata	Taraxacum subundulatum

Conservation Status

common bubble snail

LC — Least Concern

Complex-leaved Dandelion

NE — Not Evaluated

Physical Characteristics

Attribute	common bubble snail	Complex-leaved Dandelion
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common bubble snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Complex-leaved Dandelion

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

common bubble snail

The common bubble snail (<em>Akera bullata</em>) is a marine gastropod mollusc found in the coastal waters of Denmark, Norway, Portugal, and Sweden. This species typically inhabits terrestrial and aquatic environments including forests and freshwater-adjacent marine areas, often occurring in shallow subtidal and intertidal zones of temperate European seas. It is classified as Least Concern on the IUCN Red List. As a member of the family Akeridae, the common bubble snail is characterized by its thin, fragile shell and its ability to swim briefly by flapping its large, wing-like parapodia. The species often forages on algae and detritus in sandy and muddy seafloor habitats, particularly in sheltered bays and estuaries. The common bubble snail typically aggregates in large numbers during the spawning season, producing gelatinous egg masses. Biological traits of this species remain poorly documented in the scientific literature.

Complex-leaved Dandelion

<em>Taraxacum subundulatum</em>, the complex-leaved dandelion, is a perennial herbaceous plant in the family Asteraceae belonging to the extraordinarily diverse and taxonomically complex genus Taraxacum, which contains hundreds of microspecies primarily reproducing via apomixis — asexual seed production without fertilisation. This species has been documented from Denmark, Norway, and Sweden, where it inhabits meadows, grasslands, roadsides, and disturbed ground typical of the Taraxacum genus across temperate Europe. Like other dandelions, it produces a basal rosette of typically lobed or undulate leaves, a hollow leafless scape, and a characteristic composite flower head of yellow ray florets that matures into the familiar globular seed head for wind dispersal. The species is Not Evaluated on the IUCN Red List, consistent with the treatment of most Taraxacum microspecies, whose abundance and taxonomic complexity make formal threat assessments difficult. Dandelions generally tolerate a wide range of environmental conditions and are resilient to disturbance. The complex-leaved dandelion likely plays typical dandelion ecological roles as an early-season nectar source for pollinators including bees and hoverflies, and as food for specialist insects. Biological traits including average lifespan, population size, and detailed morphological dimensions specific to <em>Taraxacum subundulatum</em> remain poorly documented given the challenges of distinguishing microspecies within the aggregate.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden