Genetzer Süßwasserrochen vs Gewöhnliche Kornrade

Potamotrygon orbignyi compared with Agrostemma githago

Key Differences

Genetzer Süßwasserrochen is Near Threatened while Gewöhnliche Kornrade is Critically Endangered.

Taxonomic Classification

Rank	Genetzer Süßwasserrochen	Gewöhnliche Kornrade
Kingdom	Animalia (Tier)	Plantae (Pflanzen)
Phylum	Chordata (Chordatiere)	Magnoliophyta (Flowering Plants)
Class	Elasmobranchii	Magnoliopsida (Dicots)
Order	Myliobatiformes (Stechrochenartige)	Caryophyllales (Nelkenartige)
Family	Potamotrygonidae	Caryophyllaceae
Genus	Potamotrygon	Agrostemma
Species	Potamotrygon orbignyi	Agrostemma githago

Conservation Status

Genetzer Süßwasserrochen

NT — Near Threatened

Gewöhnliche Kornrade

CR — Critically Endangered

Physical Characteristics

Attribute	Genetzer Süßwasserrochen	Gewöhnliche Kornrade
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Genetzer Süßwasserrochen

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Colombia. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Gewöhnliche Kornrade

Habitat

Found across multiple habitat types including montane grasslands and shrublands, tropical and subtropical moist broadleaf forests, and temperate coniferous forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Lesotho), Asia (7 countries), Europe (24 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Genetzer Süßwasserrochen

The Anglespot river stingray (Potamotrygon orbignyi) is a species in the genus Potamotrygon. It is currently classified as Near Threatened on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.

Gewöhnliche Kornrade

<em>Agrostemma githago</em>, commonly known as common corncockle, is an annual flowering plant in the family Caryophyllaceae. Once a widespread weed of cereal crops across Europe, Asia, and beyond, this species is now Critically Endangered on the IUCN Red List due to the dramatic decline caused by modern agricultural practices, particularly improved grain cleaning and herbicide use. Corncockle is a tall, slender plant covered in silky white hairs, bearing large, solitary pink to purple flowers with distinctive dark veining. Its seeds contain toxic saponin compounds called githagins, which historically contaminated grain supplies. The species now survives primarily in wildflower conservation areas, seed banks, and traditional farmland conservation schemes. It typically grows in open, disturbed arable soils with full sun exposure. Biological traits of this species remain poorly documented in the scientific literature.