Oak apple - Biorhiza pallida f. sexual
The oak-apple galls are large and spongy, pale green becoming cream/pink or red, and later brown; they persist as old galls over winter. Inside are multiple larval chambers. They are formed by the sexual generation.
Provide photographs of the gall on the host plant and note the host species.
English/sessile oaks
See British Plant Galls (Redfern & Shirley, 2023).
Melinda Bell
Bardon Hill
13 April 2024
Steve Harris
Scotlands, nr Aston Flamville
04 August 2018
Peter Smith
Thrussington, Old Gate Road
01 February 2025
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Common names
- Oak-apple Causer
- Species group:
- Bees, Wasps, Ants
- Kingdom:
- Order:
- Family:
- Records on NatureSpot:
- 14
- First record:
- 04/08/2018 (Harris, Steve)
- Last record:
- 02/05/2025 (Smith, Peter)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.