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Species · Flowering plants

Milk Thistle

Silybum marianum

309Records since 2000
JunePeak month
33Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan10
Feb7
Mar17
Apr26
May51
Jun81
Jul26
Aug9
Sep19
Oct29
Nov14
Dec8

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Norfolk England34
2Suffolk England25
3Cambridgeshire England21
4Essex England12
5Worcestershire England11
6Rutland England11
7Kent England9
8Herefordshire, County of England9
9Surrey England8
10Lincolnshire England8
11Somerset England7
12Portsmouth England7
13Oxfordshire England6
14Cornwall England6
15Dorset England5
244 England4 Scotland7 Wales

Records per county (GADM level 2) and per nation; one record can count towards several areas. 33 counties in all.

About this species

Records since 2000
309
Peak month
June
Counties with records
33
IUCN Red List
Least Concern
Scientific name
Silybum marianum
Group
Flowering plants
NBN Atlas records since 2000
1,234
Conservation designations
GB Red List (2001 IUCN criteria), Scottish Biodiversity List
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Asterales
Family
Asteraceae
Genus
Silybum
Name with authority
Silybum marianum (L.) Gaertn.

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q193798 · GBIF 3145214