Colorado Pinyon vs Common Fieldcap

Pinus edulis compared with Agrocybe pediades

Taxonomic Classification

Rank	Colorado Pinyon	Common Fieldcap
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Coniferophyta (Conifers)	Basidiomycota (Club Fungi)
Class	Pinopsida (Conifers)	Agaricomycetes (Mushrooms)
Order	Pinales (Pines & Allies)	Agaricales (Gilled Mushrooms)
Family	Pinaceae (Pine Family)	Strophariaceae
Genus	Pinus (Pines)	Agrocybe
Species	Pinus edulis	Agrocybe pediades

Conservation Status

Colorado Pinyon

LC — Least Concern

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Colorado Pinyon	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colorado Pinyon

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

Common Fieldcap

Habitat

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

Range

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

Colorado Pinyon

<em>Pinus edulis</em>, the Colorado pinyon or two-needle pinyon pine, is a small to medium-sized conifer in the family Pinaceae forming an integral component of pinyon-juniper woodland ecosystems across the southwestern United States. This species is assessed as Least Concern by the IUCN. It inhabits temperate and boreal forest zones at higher elevations, typically between 1,500 and 2,700 metres, on rocky, well-drained soils in arid and semi-arid mountain ranges. The large, wingless seeds of <em>Pinus edulis</em>, commonly known as pine nuts, are an important food source for a diversity of wildlife including jays, woodpeckers, squirrels, and bears, as well as for Indigenous peoples of the American Southwest who have harvested them for millennia. Pinyon jays in particular exhibit strong ecological mutualism with this pine, caching seeds and inadvertently dispersing them across the landscape. The species is susceptible to bark beetle outbreaks during drought conditions, and large-scale tree mortality events have been recorded during extended droughts in recent decades. Biological traits of this species remain poorly documented in the scientific literature.

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.