Erdmandel vs Knollen-Zypergras

Cyperus esculentus compared with Cyperus rotundus

Key Differences

Erdmandel is Not Evaluated while Knollen-Zypergras is Least Concern.

Taxonomic Classification

Rank	Erdmandel	Knollen-Zypergras
Kingdom same	Plantae (Pflanzen)	Plantae (Pflanzen)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order same	Poales (Süßgrasartige)	Poales (Süßgrasartige)
Family same	Cyperaceae	Cyperaceae
Genus same	Cyperus	Cyperus
Species	Cyperus esculentus	Cyperus rotundus

Evolutionary Relationship

Erdmandel and Knollen-Zypergras share a common ancestor at the Genus level: Cyperus.

Ansehen Genus: Cyperus

Conservation Status

Erdmandel

NE — Not Evaluated

Knollen-Zypergras

LC — Least Concern

Physical Characteristics

Attribute	Erdmandel	Knollen-Zypergras
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Erdmandel

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Africa (12 countries), Asia (7 countries), Europe (16 countries), North America (6 countries), Oceania and the Pacific (Australia, New Zealand), and South America (8 countries).

Knollen-Zypergras

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (18 countries), Asia (20 countries), Europe (11 countries), North America (12 countries), Oceania and the Pacific (14 countries), and South America (7 countries).

Erdmandel

Chufa, also known as Tiger Nut or Earth Almond (Cyperus esculentus), is a cosmopolitan sedge in the family Cyperaceae valued for the edible, starchy tubers produced on its underground stolons. Originating in Africa, it was cultivated by ancient Egyptians and has spread to virtually all inhabited continents, thriving in warm to temperate regions with sufficient moisture. In Spain, chufa is commercially grown in Valencia for the production of horchata de chufa, a traditional sweet, milky non-dairy beverage made from soaked and ground tubers. The plant grows 20–90 cm tall with triangular stems characteristic of sedges, producing dense, grass-like foliage and small umbrella-shaped floral clusters. The pea-sized tubers are high in starch, sugars, fat, and dietary fiber. While valued as a food crop in some regions, Cyperus esculentus is considered an invasive weed in many agricultural contexts, particularly in maize, soybean, and sugar cane fields worldwide, where its deeply buried tubers make eradication difficult. The species is listed as Not Evaluated by the IUCN. Its global distribution and weedy habits make population-level threats essentially irrelevant in the conventional conservation sense.