Colchian Hazel vs Common Fieldcap

Corylus colchica compared with Agrocybe pediades

Key Differences

• Colchian Hazel is Vulnerable while Common Fieldcap is Least Concern.

Taxonomic Classification

Rank	Colchian Hazel	Common Fieldcap
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Magnoliopsida (Dicots)	Agaricomycetes (Mushrooms)
Order	Fagales (Beeches & Oaks)	Agaricales (Gilled Mushrooms)
Family	Betulaceae	Strophariaceae
Genus	Corylus	Agrocybe
Species	Corylus colchica	Agrocybe pediades

Conservation Status

Colchian Hazel

VU — Vulnerable

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Colchian Hazel	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colchian Hazel

Habitat

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

Common Fieldcap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Found across Europe (5 countries) and North America (United States).

Colchian Hazel

<em>Corylus colchica</em>, the Colchian Hazel, is a woody plant in the family Betulaceae. This species is classified as Vulnerable on the IUCN Red List, indicating a high risk of extinction under current conditions. The epithet "colchica" refers to Colchis, an ancient region corresponding roughly to present-day western Georgia in the Caucasus, suggesting a geographic origin in that region. The species is associated with diverse terrestrial habitats ranging from tropical to temperate zones, reflecting the ecological breadth often seen in the genus <em>Corylus</em>. Hazels in this genus typically produce edible nuts and catkins, and often form thickets or understory growth in mixed forests. No specific countries are listed in the available records for <em>Corylus colchica</em>, limiting precise range documentation. Diet information, population estimates, and biological measurements including length, weight, and lifespan are not documented in the available records. Biological traits of this species remain poorly documented in the scientific literature. Its Vulnerable status highlights the need for targeted conservation assessments and habitat protection within its native range.

Common Fieldcap

The Common Fieldcap (<em>Agrocybe pediades</em>) is a saprotrophic fungus belonging to the genus Agrocybe within the family Strophariaceae. It typically produces small, tan to pale brown cap-shaped fruiting bodies and is often found growing in clusters or scattered on lawns, grassy areas, forest floors, decomposing wood, and soil-rich ecosystems. The species typically inhabits forest floors, decomposing wood, and soil ecosystems, obtaining nutrients by breaking down dead organic matter. Its geographic range includes several European countries — Belgium, Denmark, Norway, Portugal, and Sweden — as well as the United States in North America. <em>Agrocybe pediades</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent stability. Biological traits of this species, including specific data on fruiting body size, lifespan, and ecological preferences, remain poorly documented in the scientific literature. Like other members of its genus, it typically fruits during warmer months and often appears after rainfall in nutrient-rich grassland and woodland habitats.