Rhodocollybia butyracea is a small to medium-sized mushroom with a buttery or creamy cap that ranges in color from yellowish to pinkish-brown, often with a darker center. The gills are crowded and pale yellow to cream-colored. It typically grows in clusters on the ground in wooded areas, especially under oak and pine trees. In East and Central Texas, it is commonly found in the fall season, particularly in October and November, in a variety of habitats including deciduous and mixed forests. The fungus tends to prefer moist, rich soils and can be abundant in areas with an abundance of leaf litter.
Butter cap mushrooms (Rhodocollybia butyracea) in Lick Creek Park. College Station, Texas, November 9, 2018 Iron Bridge Trail, College Station, TX 77845, USA
Butter cap mushrooms (Rhodocollybia butyracea) in Lick Creek Park. College Station, Texas, November 9, 2018
Butter cap mushrooms (Rhodocollybia butyracea) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, December 12, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Jagged gills of butter cap mushrooms (Rhodocollybia butyracea) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, December 12, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Butter cap mushrooms (Rhodocollybia butyracea) under small oaks in Lick Creek Park. College Station, Texas, December 23, 2020 Iron Bridge Trail, College Station, TX 77845, USA
Butter cap mushrooms (Rhodocollybia butyracea) under small oaks in Lick Creek Park. College Station, Texas, January 21, 2021 Iron Bridge Trail, College Station, TX 77845, USA
Side view of butter cap mushrooms (Rhodocollybia butyracea) under small oaks in Lick Creek Park. College Station, Texas, January 21, 2021 Iron Bridge Trail, College Station, TX 77845, USA
Gills of butter cap mushrooms (Rhodocollybia butyracea) under small oaks in Lick Creek Park. College Station, Texas, January 21, 2021 Iron Bridge Trail, College Station, TX 77845, USA
Underside of butter cap mushrooms (Rhodocollybia butyracea) under small oaks in Lick Creek Park. College Station, Texas, January 21, 2021 Iron Bridge Trail, College Station, TX 77845, USA
Butter cap mushrooms (Rhodocollybia butyracea) among pine needles on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, November 14, 2021 Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Butter cap mushrooms (Rhodocollybia butyracea) in Little Thicket Nature Sanctuary. Cleveland, Texas, April 22, 2023 San Jacinto County, Texas, United States
AI-generated summary of observations
Observations of Rhodocollybia butyracea in East and Central Texas show that the fungus grows in various environments. In Lick Creek Park, College Station, it was found under small oaks on multiple occasions (November 9, 2018, December 23, 2020, January 21, 2021). The mushrooms were also spotted in Sam Houston National Forest, specifically on Lone Star Hiking Trail near Pole Creek (December 12, 2020) and among pine needles on North Wilderness Trail (November 14, 2021). Additionally, they were found in Little Thicket Nature Sanctuary, Cleveland (April 22, 2023). The observations suggest that Rhodocollybia butyracea can thrive in different habitats, including oak and pine environments, and can be present throughout the year, with sightings recorded from November to April. The fungus's jagged gills were also noted in some observations.