Cliff Mining Bee vs climbing groundsel

Andrena thoracica compared with Senecio angulatus

Key Differences

Cliff Mining Bee is Extinct while climbing groundsel is Not Evaluated.

Taxonomic Classification

Rank	Cliff Mining Bee	climbing groundsel
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Hymenoptera (Ants, Bees & Wasps)	Asterales (Daisies & Sunflowers)
Family	Andrenidae	Asteraceae (Daisy Family)
Genus	Andrena	Senecio
Species	Andrena thoracica	Senecio angulatus

Conservation Status

Cliff Mining Bee

EX — Extinct

climbing groundsel

NE — Not Evaluated

Physical Characteristics

Attribute	Cliff Mining Bee	climbing groundsel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cliff Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

climbing groundsel

Habitat

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

Range

Widely distributed across Europe (10 countries), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

Cliff Mining Bee

The Cliff Mining Bee, Andrena species in the family Andrenidae, is a solitary ground-nesting bee that excavates tunnels in cliff faces, earthen banks, and compacted sandy or loamy soils, where the loose or friable substrates exposed in cliff profiles provide ideal nesting conditions. Mining bees in the genus Andrena are among the most species-rich solitary bee genera in the world, with hundreds of species across the Holarctic region, many narrowly specialized in their choice of pollen host plants. Female cliff mining bees construct vertical or angled burrows in cliff faces, with lateral cells off the main shaft, each containing a pollen ball and a single egg. Males are typically smaller and emerge before females to establish territories near nesting sites. Many Andrena species are oligolectic, collecting pollen from only a small number of plant species, making their populations sensitive to the availability of specific flowering plants in the landscape surrounding nesting areas. Cliff and bank nesting habitats provide well-drained, sun-warmed substrates essential for brood development. The loss of natural cliff faces and earthen banks to development, vegetation succession, and quarrying reduces available nesting habitat for cliff mining bees.

climbing groundsel

Climbing Groundsel, Senecio angulatus, is a woody, scrambling perennial vine in the family Asteraceae native to South Africa, particularly the Western and Eastern Cape provinces, where it grows in coastal scrub, fynbos margins, and forest edges. The species produces yellow daisy-like flower heads in terminal clusters from autumn through spring, which are followed by fluffy white achenes dispersed by wind. Climbing Groundsel has become widely naturalized and highly invasive in many parts of the world where it has been introduced as a garden ornamental, including Australia, New Zealand, and parts of Europe. In Australia, it is listed as a major environmental weed in southeastern states, particularly New South Wales and Victoria, where it invades coastal heath, dry sclerophyll forest, and urban bush remnants, smothering native vegetation with dense scrambling growth. The plant regenerates readily from stem fragments and produces abundant wind-dispersed seeds. Control in invaded habitats requires sustained effort combining physical removal and herbicide application. In its native South African range, Senecio angulatus is part of diverse coastal scrub communities and is not considered threatened. The genus Senecio is one of the largest flowering plant genera in the world, with species ranging from annuals to giant tree groundsels in tropical alpine zones.