Agrimony vs Chrysanthemum White Rust

Agrimonia eupatoria compared with Puccinia horiana

Key Differences

Agrimony is Near Threatened while Chrysanthemum White Rust is Not Evaluated.

Taxonomic Classification

Rank	Agrimony	Chrysanthemum White Rust
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Magnoliopsida (Dicots)	Pucciniomycetes (Pucciniomycetes)
Order	Rosales (Roses & Allies)	Pucciniales (Pucciniales)
Family	Rosaceae (Rose Family)	Pucciniaceae
Genus	Agrimonia	Puccinia
Species	Agrimonia eupatoria	Puccinia horiana

Conservation Status

Agrimony

NT — Near Threatened

Chrysanthemum White Rust

NE — Not Evaluated

Physical Characteristics

Attribute	Agrimony	Chrysanthemum White Rust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Agrimony

Habitat

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

Range

Widely distributed across Europe (6 countries), North America (Canada, United States), and Oceania and the Pacific (Australia). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Chrysanthemum White Rust

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (12 countries), and South America (Brazil).

Agrimony

The Agrimony (Agrimonia eupatoria) is a species in the genus Agrimonia. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Chrysanthemum White Rust

Chrysanthemum white rust is a disease caused by the fungal pathogen Puccinia horiana, a biotrophic rust fungus in the family Pucciniaceae. It is one of the most serious diseases affecting cultivated chrysanthemums globally and is classified as a quarantine pathogen in many countries. The disease was first described in Japan in the early twentieth century and has since spread to major chrysanthemum-producing regions worldwide through the international movement of infected plant material. Symptoms include pale green to yellow spots on the upper leaf surface corresponding to circular to angular white to pale pink pustules on the underside of the leaf, which produce masses of waxy, white teliospores. Unlike many rust fungi, Puccinia horiana has a simplified life cycle that does not require an alternate host, completing its development entirely on chrysanthemum. The fungus spreads readily via windborne spores, water splash, and contaminated cutting tools. Under cool, humid conditions with high relative humidity, infection can progress rapidly, causing extensive leaf damage and defoliation in severely affected plants. Strict phytosanitary measures including inspection of imported planting material, sanitation of growing facilities, and fungicide application are employed to manage the disease in commercial chrysanthemum production.