Common Bladderwort vs Polyphyllous Globe Thistle

Utricularia vulgaris compared with Echinops foliosus

Key Differences

• Common Bladderwort is Near Threatened while Polyphyllous Globe Thistle is Vulnerable.

Taxonomic Classification

Rank	Common Bladderwort	Polyphyllous Globe Thistle
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Lamiales (Lamiales)	Afrosoricida (Afrosoricida)
Family	Lentibulariaceae	Tenrecidae
Genus	Utricularia	Echinops
Species	Utricularia vulgaris	Echinops foliosus

Conservation Status

Common Bladderwort

NT — Near Threatened

Polyphyllous Globe Thistle

VU — Vulnerable

Physical Characteristics

Attribute	Common Bladderwort	Polyphyllous Globe Thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Bladderwort

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Polyphyllous Globe Thistle

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Bladderwort

The common bladderwort (<em>Utricularia vulgaris</em>) is a carnivorous aquatic plant belonging to the family Lentibulariaceae. It is classified as Near Threatened on the IUCN Red List, reflecting population declines linked to habitat loss and water quality degradation. The species has been recorded across diverse terrestrial tropical to temperate habitats in Belgium, Denmark, Norway, Sweden, and the United States. <em>Utricularia vulgaris</em> is typically found in slow-moving or still freshwater bodies such as ponds, lakes, ditches, and marshes. It is rootless and free-floating, with finely divided submerged stems bearing numerous small bladder-like traps that capture zooplankton, small aquatic invertebrates, and even mosquito larvae through a rapid suction mechanism. The plant produces yellow snapdragon-like flowers on emergent stems above the water surface during summer. Its carnivorous strategy allows it to supplement nutrients in nutrient-poor aquatic environments. Biological traits of this species remain poorly documented in the scientific literature.