Colchicum Rust vs common greasewort

Uromyces colchici compared with Aneura pinguis

Key Differences

• Colchicum Rust is Not Evaluated while common greasewort is Least Concern.

Taxonomic Classification

Rank	Colchicum Rust	common greasewort
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Marchantiophyta (liverwort)
Class	Pucciniomycetes (Pucciniomycetes)	Jungermanniopsida (Jungermanniopsida)
Order	Pucciniales (Pucciniales)	Metzgeriales (Metzgeriales)
Family	Pucciniaceae	Aneuraceae
Genus	Uromyces	Aneura
Species	Uromyces colchici	Aneura pinguis

Conservation Status

Colchicum Rust

NE — Not Evaluated

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Colchicum Rust	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colchicum Rust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in United Kingdom.

common greasewort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil, Colombia).

Colchicum Rust

<em>Uromyces colchici</em>, commonly referred to as Colchicum Rust, is a fungal pathogen in the order Pucciniales, family Pucciniaceae. This rust fungus is associated with plants in the genus <em>Colchicum</em>, commonly known as autumn crocuses or meadow saffrons. The species has been recorded in the United Kingdom and is presumed to occupy European ecosystems more broadly. Rust fungi in the genus <em>Uromyces</em> are obligate biotrophs, meaning they complete their life cycles on living host plant tissue. They typically cause visible lesions or pustules on leaves and stems of their host plants, which can affect host vigor. <em>Uromyces colchici</em> has not been formally assessed under the IUCN Red List, and its conservation status is unknown. Biological traits such as reproductive specifics and dispersal mechanisms follow those typical of rust fungi but have not been specifically documented for this species in available records. Biological traits of this species remain poorly documented in the scientific literature. Its ecological impact on <em>Colchicum</em> populations in European grassland and woodland habitats is not well quantified.

common greasewort

<em>Aneura pinguis</em>, commonly known as common greasewort, is a liverwort belonging to the genus Aneura within the family Aneuraceae. This cryptogamic plant inhabits ecosystems across Asia, Europe, and North America, thriving in moist or waterlogged environments. Its range encompasses Taiwan in Asia, six European countries, the United States in North America, and Brazil and Colombia in South America, indicating a broad geographic distribution across multiple continents. Common greasewort is assessed as Least Concern on the IUCN Red List. The species typically forms flat, ribbon-like thalli in damp habitats such as stream banks, wet rocks, and boggy ground. Biological traits of this species remain poorly documented in the scientific literature.