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Species · Seaweeds and algae

Gomphonema olivaceum

1,026Records since 2000
AprilPeak month
13Counties with records

When it is recorded

Jan0
Feb0
Mar18
Apr327
May242
Jun22
Jul30
Aug16
Sep230
Oct107
Nov34
Dec0

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

Where it is recorded

#CountyNationRecordsShare
1Powys Wales218
2Carmarthenshire Wales92
3Denbighshire Wales77
4Monmouthshire Wales76
5Wrexham Wales63
6Gwynedd Wales62
7Isle of Anglesey Wales58
8Pembrokeshire Wales45
9Swansea Wales45
10Conwy Wales28
11Ceredigion Wales12
12Worcestershire England2
13Herefordshire, County of England2
14 England1,012 Wales

Records per county (GADM level 2) and per nation; one record can count towards several areas. 13 counties in all.

About this species

Records since 2000
1,026
Peak month
April
Counties with records
13
Group
Seaweeds and algae
NBN Atlas records since 2000
982
Kingdom
Chromista
Phylum
Ochrophyta
Class
Bacillariophyceae
Order
Cymbellales
Family
Gomphonemataceae
Genus
Gomphonema
Name with authority
Gomphonema olivaceum (Hornemann) Brébisson, 1838
Described
1838
Contributing datasets
1

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · GBIF 10462923