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Species · Flowering plants

Jacob's-ladder

Polemonium caeruleum

420Records since 2000
JunePeak month
71Counties with records

When it is recorded

Jan0
Feb0
Mar7
Apr24
May117
Jun157
Jul70
Aug22
Sep7
Oct3
Nov1
Dec1

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

Where it is recorded

#CountyNationRecordsShare
1Worcestershire England16
2North Yorkshire England15
3Cumbria England14
4Suffolk England7
5Oxfordshire England7
6Highland Scotland7
7Surrey England6
8Lincolnshire England6
9Sefton England6
10Powys Wales6
11Shetland Islands —6
12Fife Scotland6
13Perth and Kinross Scotland6
14Sheffield England6
15Calderdale England6
126 England25 Scotland1 Wales

Records per county (GADM level 2) and per nation; one record can count towards several areas. 71 counties in all.

About this species

Records since 2000
420
Peak month
June
Counties with records
71
Scientific name
Polemonium caeruleum
Group
Flowering plants
NBN Atlas records since 2000
1,153
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Ericales
Family
Polemoniaceae
Genus
Polemonium
Name with authority
Polemonium caeruleum L.

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q162779 · GBIF 2927850