Coastal Flat-body vs Common Salsify

Agonopterix yeatiana compared with Tragopogon porrifolius

Key Differences

Coastal Flat-body is Near Threatened while Common Salsify is Not Evaluated.

Taxonomic Classification

Rank	Coastal Flat-body	Common Salsify
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Asterales (Daisies & Sunflowers)
Family	Depressariidae	Asteraceae (Daisy Family)
Genus	Agonopterix	Tragopogon
Species	Agonopterix yeatiana	Tragopogon porrifolius

Conservation Status

Coastal Flat-body

NT — Near Threatened

Common Salsify

NE — Not Evaluated

Physical Characteristics

Attribute	Coastal Flat-body	Common Salsify
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Common Salsify

Habitat

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

Range

Widely distributed across Asia (India, Japan, Taiwan), Europe (16 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

Coastal Flat-body

Agonopterix yeatiana, the coastal flat-body, is a small moth in the family Depressariidae native to coastal and calcareous grassland habitats across western and northern Europe, with records from Belgium, Denmark, and Sweden. Moths in the family Depressariidae, commonly called flat-body moths due to the depressed posture they adopt when resting with wings held flat against the surface, are associated predominantly with umbellifer plants of the family Apiaceae as larval hosts. Agonopterix yeatiana larvae feed on wild carrot (Daucus carota), wild parsnip (Pastinaca sativa), and related coastal and grassland Apiaceae species, inhabiting the open, often calcareous or sandy habitats where these plants grow. Adult moths have greyish-brown forewing with a distinctive pattern of spots and dashes and reach approximately 8–12 millimeters in wingspan. The species is classified as Near Threatened by the IUCN, reflecting declines associated with the loss of traditional hay meadow management, coastal grassland degradation, and scrub encroachment that eliminates the open, flower-rich grassland habitats supporting its host plants. Agricultural intensification has reduced wild umbellifer populations significantly across lowland Europe, reducing food resources for larvae of specialist moths like A. yeatiana.

Common Salsify

<em>Tragopogon porrifolius</em>, commonly known as common salsify, vegetable oyster, or purple salsify, is a biennial or perennial herbaceous plant in the family Asteraceae. Native to Mediterranean Europe and western Asia, it has been widely cultivated as a root vegetable since antiquity and has naturalized extensively across Europe, the Americas, Australia, and parts of Asia. The plant typically grows on roadsides, waste ground, dry grasslands, and disturbed soils in sunny locations. In its first year it produces a rosette of grass-like, grey-green leaves; in the second year it produces tall, branched stems bearing showy purple flower heads that resemble large dandelions, typically 5–7 centimeters in diameter. The edible taproot has a pale, somewhat oyster-like flavor when cooked, and the young shoots and flower buds are also edible. Common salsify is not currently evaluated on the IUCN Red List. Pollination is primarily by bees and other insects visiting the flowers, which open only in morning sunlight. Seeds are dispersed by wind via a feathery pappus. The species favors well-drained, moderately fertile soils and can be found in both rural and urban habitats. Biological traits such as average lifespan, body measurements, and detailed ecological diet data remain poorly documented in standardized ecological databases.