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Fungi: Basidiomycota: Agaricomycetes: Russulales: Russulaceae: Russula flavida Frost ex Peck

Russula flavida

Synonym: Russula mariae.

Extract from Wikipedia article: Russula flavida is a member of the large mushroom genus Russula, described in 1880 by American botanist and mycologist Charles Christopher Frost and found in North America and parts of Asia. It has a bright yellow to orange yellow cap and stipe and white gills.

Arabic: روسولا صفراء.

AI-generated description

Russula flavida is a species of mushroom characterized by its bright yellow to yellow-orange cap, which is convex to flat in shape and measures 3-8 cm in diameter. The gills are pale yellow to cream-colored and the stem is white to pale yellow. In East and Central Texas, Russula flavida typically fruits from June to October, often in association with oak and pine trees. It can be found in a variety of habitats, including woodland edges, clearings, and along roadsides. The fungus is considered edible, but its quality is variable and it may cause gastrointestinal upset in some individuals.

Photos of this mushroom from East and Central Texas

Brittlegill mushroom <B>Russula flavida</B> on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2020-04-20.htm">April 20, 2020</A>
LinkBrittlegill mushroom Russula flavida on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
Location on mapsLittle Lake Creek Loop Trail, Montgomery, TX 77356, USA
Side view of brittlegill mushroom <B>Russula flavida</B> on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2020-04-20.htm">April 20, 2020</A>
LinkSide view of brittlegill mushroom Russula flavida on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
Location on mapsLittle Lake Creek Loop Trail, Montgomery, TX 77356, USA
Dissected brittlegill mushroom <B>Russula flavida</B> on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2020-04-20.htm">April 20, 2020</A>
LinkDissected brittlegill mushroom Russula flavida on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
Location on mapsLittle Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of brittlegill mushroom <B>Russula flavida</B> on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, <A HREF="../date-en/2020-06-07.htm">June 7, 2020</A>
LinkUnderside of brittlegill mushroom Russula flavida on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 7, 2020
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Brittlegill mushroom <B>Russula flavida</B> on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, <A HREF="../date-en/2020-06-07.htm">June 7, 2020</A>
LinkBrittlegill mushroom Russula flavida on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 7, 2020
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Brittlegill mushrooms <B>Russula flavida</B> in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, <A HREF="../date-en/2020-10-11.htm">October 11, 2020</A>
LinkBrittlegill mushrooms Russula flavida in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, October 11, 2020
Location on mapsBig Creek Trail, Shepherd, TX 77371, USA
Brittlegill mushroom <B>Russula flavida</B> on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, <A HREF="../date-en/2021-07-23.htm">July 23, 2021</A>
LinkBrittlegill mushroom Russula flavida on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 23, 2021
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Brittlegill mushroom <B>Russula flavida</B> together with chanterelle on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, <A HREF="../date-en/2021-07-23.htm">July 23, 2021</A>
LinkBrittlegill mushroom Russula flavida together with chanterelle on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 23, 2021
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Dissected brittlegill mushroom <B>Russula flavida</B> on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, <A HREF="../date-en/2021-07-23.htm">July 23, 2021</A>
LinkDissected brittlegill mushroom Russula flavida on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 23, 2021
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Brittlegill mushroom <B>Russula flavida</B> with a cross section on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, <A HREF="../date-en/2021-07-23.htm">July 23, 2021</A>
LinkBrittlegill mushroom Russula flavida with a cross section on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 23, 2021
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of a brittlegill mushroom <B>Russula flavida</B> on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2021-10-23.htm">October 23, 2021</A>
LinkUnderside of a brittlegill mushroom Russula flavida on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Bright orange brittlegill mushroom <B>Russula flavida</B> on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2021-10-23.htm">October 23, 2021</A>
LinkBright orange brittlegill mushroom Russula flavida on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Bright yellow brittlegill mushroom <B>Russula flavida</B> on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2021-10-23.htm">October 23, 2021</A>
LinkBright yellow brittlegill mushroom Russula flavida on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
Location on mapsForest Service Rd 231, Montgomery County, Texas, United States
Cross section brittlegill mushroom <B>Russula flavida</B> on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2021-10-23.htm">October 23, 2021</A>
LinkCross section brittlegill mushroom Russula flavida on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
Location on mapsForest Service Rd 231, Montgomery County, Texas, United States
Bright yellow cap of brittlegill mushroom <B>Russula flavida</B> on pine litter on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2022-01-01.htm">January 1, 2022</A>
LinkBright yellow cap of brittlegill mushroom Russula flavida on pine litter on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2022
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Underside of brittlegill mushroom <B>Russula flavida</B> on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2022-01-01.htm">January 1, 2022</A>
LinkUnderside of brittlegill mushroom Russula flavida on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2022
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Gills of brittlegill mushroom <B>Russula flavida</B> on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2022-01-01.htm">January 1, 2022</A>
LinkGills of brittlegill mushroom Russula flavida on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2022
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Cross section of brittlegill mushroom <B>Russula flavida</B> on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2022-01-01.htm">January 1, 2022</A>
LinkCross section of brittlegill mushroom Russula flavida on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2022
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of brittlegill mushroom <B>Russula flavida</B> at low magnification, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 1, 2022
LinkSpores of brittlegill mushroom Russula flavida at low magnification, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 1, 2022
Spores of brittlegill mushroom <B>Russula flavida</B> collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 1, 2022
LinkSpores of brittlegill mushroom Russula flavida collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 1, 2022
Bright yellow brittlegill mushroom <B>Russula flavida</B> on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, <A HREF="../date-en/2023-04-28.htm">April 28, 2023</A>
LinkBright yellow brittlegill mushroom Russula flavida on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 28, 2023
Location on mapsLone Star Hiking Trail, Montgomery County, Texas, United States
Gills of bright yellow brittlegill mushroom <B>Russula flavida</B> on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, <A HREF="../date-en/2023-04-28.htm">April 28, 2023</A>
LinkGills of bright yellow brittlegill mushroom Russula flavida on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 28, 2023
Location on mapsLone Star Hiking Trail, Montgomery County, Texas, United States
Cross section of bright yellow brittlegill mushroom <B>Russula flavida</B> on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, <A HREF="../date-en/2023-04-28.htm">April 28, 2023</A>
LinkCross section of bright yellow brittlegill mushroom Russula flavida on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 28, 2023
Location on mapsLone Star Hiking Trail, Montgomery County, Texas, United States

AI-generated summary of observations

Observations of the fungus Russula flavida in East and Central Texas reveal that it can be found in various locations within Sam Houston National Forest. The mushroom was spotted on trails such as Richards Loop Trail, Lone Star Hiking Trail, and South Wilderness Loop Trail, often growing on pine litter or near creeks. It was observed in different months, including April, June, July, October, and January, suggesting a relatively long fruiting period. The mushrooms displayed varying cap colors, including bright yellow and orange. Dissections and cross-sections of the mushroom were also made, revealing its internal structure. Spore samples were collected and examined under low magnification. Overall, the observations suggest that Russula flavida is a common species in the region, with a wide distribution and varied appearance.

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