About Earthynature of Britain
  1. Home
  2. Species
  3. False Irish Moss
Species · Seaweeds and algae

False Irish Moss

Mastocarpus stellatus

2,553Records since 2000
AugustPeak month
38Counties with records

When it is recorded

Jan101
Feb25
Mar88
Apr190
May270
Jun289
Jul301
Aug444
Sep429
Oct197
Nov29
Dec86

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

Where it is recorded

#CountyNationRecordsShare
1Cornwall England169
2Pembrokeshire Wales141
3Devon England123
4Scottish Borders Scotland103
5Gwynedd Wales88
6Ards and North Down Northern Ireland73
7Plymouth England54
8Argyll and Bute Scotland46
9Causeway Coast and Glens Northern Ireland46
10North Yorkshire England30
11North Ayrshire Scotland30
12Isle of Anglesey Wales29
13Highland Scotland26
14Newry, Mourne and Down Northern Ireland25
15Ceredigion Wales23
908 England356 Scotland553 Wales426 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 38 counties in all.

About this species

Records since 2000
2,553
Peak month
August
Counties with records
38
Scientific name
Mastocarpus stellatus
Group
Seaweeds and algae
NBN Atlas records since 2000
2,353
Kingdom
Plantae
Phylum
Rhodophyta
Class
Florideophyceae
Order
Gigartinales
Family
Phyllophoraceae
Genus
Mastocarpus
Name with authority
Mastocarpus stellatus (Stackhouse) Guiry, 1984
Described
1984
Contributing datasets
52

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q1786888 · GBIF 2667288