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Botanical nameCommon NameGuernsey NameEarliest reference see belowFamilyNotesGASHUK rarity valueGosselin HerbariumKent NoWorking Herbarium no. of specimens
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Acaena novae-zelandiaePirri-pirri-bur Poterium1 site, Vale, 2000r---75.18.11
3
Acanthus mollisBear's-breechAcanthaceaeCan persist as a garden outcasto---127.1.13
4
Acanthus spinosusSpiny Bear's-breechAcanthaceae1975, La Garenne d'Anneville----F127.1.22
5
Acer campestreField MapleBabingtonSapindaceaeCan self-seedppp-
6
Acer platanoidesNorway MapleSapindaceaeSelf-seedspppp
7
Acer pseudoplatanusSycamoreGosselin D2SapindaceaeSeeds itself everywhere possible even Vazon beach under sea wall!ccco99.1.44
8
Acer pseudoplatanus f. purpureaPurple SycamoreSapindaceaeWorking Herbarium, Pine forest99.1.41
9
Achillea millefoliumYarrowGosselin D1AsteraceaeWidespreadcccf42135.53.32
10
Aconitum lycoctonum ssp. vulpariaWolf's-baneRanunculaceae1 record in a garden, not planted, 1992 - now gone----28.6.21
11
Acorus calamusSweet-flagPlantedAcoracaceaeSaumarez Park pondr---
12
Adiantum capillus-venerisMaidenhair FernPteridaceaeA few sites in St. Peter Port and the Câtelop--7.3.13
13
Adonis annuaPheasant's-eyeRanunculaceaeA few old records----
14
Aegopodium podagrariaGround-elderGosselin D1ApiaceaePetit Bôt; Le Varclin; Sausmarez Manor, Saumarez Park, HH 2019, now naturalised in Brother's Cemetery, a nuisance.o-rr23107.14.12
15
Aesculus hippocastanumHorse-chestnutSapindaceaeSeedlings sometimes reportedpppp
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Aesculus indicaIndian Horse-chestnutSapindaceaeSaumarez Park, seedlings occurpppp
17
Aethusa cynapiumFool's ParsleyGosselin D1ApiaceaeRoadside and garden weedorf-107.20.19
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Agapanthus praecoxAfrican LilyAmaryllidaceaeGarden escape, can persistoro-
19
Agave americanaCenturyplantAsparagaceaeFort Saumarez; Herm. Spreads vegetativelypp-r160.2.11
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Agrimonia eupatoriaAgrimonyGosselin D1RosaceaeNo recent Guernsey records---r75.15.14
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Agrimonia proceraFragrant AgrimonyRosaceaeAbove Saints for many years - not seen recentlyr--r75.15.24
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Agrostemma githagoCorncockleGosselin D1CarophyllaceaeLast record 1934 as a weed, now sown in wildflower mixesp-r-946.19.11
23
Agrostis caninaVelvet BentPoaceaeDamp short turfor--153.39.73
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Agrostis capillarisCommon BentBabingtonPoaceaeIsland widecccc153.39.12
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Agrostis castellanaHighland BentPoaceaeSark 1995 only--r-153.39.31
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Agrostis giganteaBlack BentPoaceaeWasteground and a garden weedor-r153.39.23
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Agrostis stoloniferaCreeping BentGosselin D2PoaceaeDamp areas, meadows and hedgebankscccc60153.39.412
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Aira caryophylleaSilver Hair-grassGosselin D2PoaceaeWaste places, wall topsfcfc60153.35.13
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Aira praecoxEarly Hair-grassGosselin D2PoaceaeMainly coastal, bare areas occc60153.35.22
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Ajuga reptansBugleGosselin D1LamiaceaeWet meadows, wet patches on cliffsrrr-37118.12.13
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Alisma plantago-aquaticaWater-plantainVazon PeatAlismataceaeIn ponds and douits, Grande Mare footpathr---137.4.12
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Alliaria petiolataGarlic MustardGosselin D1BrassicaceaeSmall patches here and thereooo-762.3.13
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Allium ampeloprasumWild LeekBabingtonAmaryllidaceaeMainly coastal, also hedgebanksfrroR158.24.133
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Allium neapolitanumNeapolitan GarlicAmaryllidaceaeAn escape from cultivation on hedgebanksorro158.24.45
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Allium roseumRosy GarlicAmaryllidaceaeMainly west coast, spreading inlando--r158.24.34
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Allium schoenoprasumChivesAmaryllidaceaeParadis onlyr---RR
37
Allium subhirsutumHairy GarlicAmaryllidaceaeCalais Lane; also Alderney and Hermrr-o158.24.53
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Allium triquetrumThree-cornered Garlic or Stinking OnionsAmaryllidaceaeIsland wide, invasive everywhereccco158.24.72
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Allium tuberosumChinese or Garlic ChivesAmaryllidaceaeRonez Quarry nature trailr---158.24.01
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Allium ursinumRamsonsAmaryllidaceaeJerbourg garden.r---
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Allium vinealeWild OnionBabingtonAmaryllidaceaeGrassland, increasingorr-158.24.162
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Alnus glutinosaAlderVazon PeatBetulaceaePlanted and can self-seedorrr40.2.11
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Alopecurus bulbosusBulbous FoxtailPoaceaeVale Pond r---RR153.47.35
44
Alopecurus geniculatusMarsh FoxtailGosselin D2PoaceaeWet areasorr-62153.47.25
45
Alopecurus myosuroidesBlack-grassPoaceaeVazon 1970s; St. Martin's 2004 r---153.47.62
46
Alopecurus pratensisMeadow FoxtailPoaceaeMeadows, hedgebanksoror153.47.13
47
Althaea officinalisMarsh-mallowGosselin D2Malvaceae2 records since Gosselin: 2003 south end of Vazon and 2007 at Rocquainer---53.3.11
48
Amaranthus albusWhite PigweedAmaranthaceae1958 only----
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Amaranthus blitumGuernsey PigweedAmaranthaceaePlants turn up here and there, do not persist, 2020 St Saviours bottom of granite path below churchr---44.1.05
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Amaranthus deflexusPerennial PigweedAmaranthaceaeSt. Sampson's; Bordeauxr---44.1.56
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Amaranthus hybridusGreen AmaranthAmaranthaceaeArable fieldso---44.1.25
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Amaranthus hypochondriacus Prince's-featherAmaranthaceaeCompost heap in Herm---r45.2.11
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Amaranthus retroflexusCommon AmaranthAmaranthaceaePlants turn up here and there, do not persist. 2020 Fort Richmond headlandrr--44.1.19
54
Amaryllis belladonnaJersey LilyAmaryllidaceaePulias; Jerbourg; Saints; Cobo; Jethouo-r-
55
Ambrosia artemisiifoliaRagweedAsteraceaeWorking Herbarium, bird seed alien135.74.14
56
Ammi majusBullwortApiaceaeWorking Herbarium, 1987, Bird seed alien107.32.16
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Ammophila arenariaMarramBabingtonPoaceaeSand dunesfc-f153.41.12
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Anacamptis laxifloraLoose-flowered OrchidGosselin D2OrchidaceaeWet meadows, 2 plants, top of Bordeaux tip, April 2020, Single specimen of white form found in La Gele fields, 11th May 2020.o---RRR162.20.13
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Anacamptis morioGreen-winged OrchidOrchidaceaeGone from Pleinmont, 21 recorded Longis Common Alderney April 2020-r--162.20.33
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Anacamptis pyramidalisPyramidal OrchidOrchidaceaePort Soif; Vazon; Fort Hommet; L'Ancresse. Increasingof-r162.14.12
61
Anchusa officinalisAlkanetBoraginaceae2 past records: 1951, 1976----
62
Anemone appeninaBlue AnemoneRanunculaceae1 record, 1971----28.9.21
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Anemone nemorosaWood AnemoneRanunculaceaeOccasionally naturalizesr---28.9.11
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Angelica pachycarpaPortuguese AngelicaApiaceaeGarden escape in St. Peter's since 1993r---107.37.01
65
Angelica sylvestrisWild AngelicaGosselin D2ApiaceaeNot recorded since Gosselin, found in July 2021, one plantr---
66
Anisantha diandraGreat BromePoaceaeIsland wide, increasingcc--153.52.17
67
Anisantha madritensisCompact BromePoaceaeEspecially the L'Eree area, decreasingoro-153.52.58
68
Anisantha rigidaRipgut BromePoaceae1 record, Pembroke 1986 ----153.52.21
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Anisantha sterilis ( Bromus sterilis )Barren BromeGosselin D2PoaceaeHedgebanks and wastelandccrf58153.52.33
70
Anisantha tectorumDrooping BromePoaceae1979 and 1990 onlyr---153.52.41
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Anogramma leptophyllaJersey FernPteridaceae2 sites, Rue Tranquesous and Moulin Huet, both sites growing in association with Hawthorn, confirmed present Rue Tranquesous Jan 2020r---RRR7.2.1 4
72
Anredera cordifoliaMadeira-vineBasellaceaeFound 1982, persisted a few years only----45/46.0.01
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Anthemis arvensisCorn ChamomileBabingtonAsteraceaePre-1901; then 1995 and 2005 - probably in arable flower mixesr---R135.55.22
74
Anthemis cotulaStinking ChamomileGosselin D1Asteraceae3 records: 1969, 1992 and 2009r-o-41 missing 2015, scrapbook spec only135.55.34
75
Anthoxanthum aristatum Annual Vernal-grassPoaceaeWorking Herbarium, Grand Havre, 1897153.37.21
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Anthoxanthum odoratumSweet Vernal-grassGosselin D2PoaceaeHedgebanks, meadows and pasturescccc62153.37.14
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Anthriscus caucalisBur ChervilGosselin D2ApiaceaePathsides and coastal turf : Icart; Fort Hommet; L'Ancresse especiallyor-c22107.6.24
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Anthriscus cerfoliumGarden ChervilApiaceaeWorking Herbarium, 1987, Les Buttes107.6.01
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Anthriscus sylvestrisCow ParsleyApiaceaeLes Fontenelles; Belvedere field - garden escapesrf--107.6.13
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Anthyllis vulnerariaKidney VetchBabingtonFabaceaeBetween Le Jaonnet and La Bettercr-77.7.12
81
Antirrhinum majusSnapdragonBabingtonVeronicaceaeWalls, especially in Townorrp124.7.12
82
Apera spica-ventiLoose Silky-bentPoaceaeSeveral records, last in 1985----R153.44.12
83
Aphanes arvensisParsley-piertBabingtonRosaceaeKings Mills 1970-1971-r--75.20.12
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Aphanes australis ( Aphanes inexpecta )Slender Parsley-piertRosaceaeOften on paths, and bare groundfccc75.20.22
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Apium graveolensWild CeleryGosselin D2ApiaceaeGrandes Rocques by douit; Moulin Huet and Petit Port at base of cliff streams, 2020, in the douit, under the bridge at Grandes Rocques, Pulias pond 2021rr--23107.28.12
86
Aptenia cordifoliaHeart-leaf IceplantAizoaceaeEscapes from gardens, but can naturalizeor--42.1.1.3
87
Aquilegia vulgarisColumbineRanunculaceaeGarden escapesr-rr28.16.11
88
Arabidopsis thalianaThale CressGosselin D1BrassicaceaeBanks and bareish soilfrcf762.4.14
89
Arabis caucasicaGarden ArabisBrassicaceaeCan self-sow; also Brecqhou 1957r-r-
90
Arabis hirsutaHairy Rock-cressGosselin D2BrassicaceaeShort turf of commonsrf--662.15.63
91
Arctium minus ssp. minusLesser BurdockGosselin D1AsteraceaeWasteland ( only taxon in Channel Islands )fofo43135.3.25
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Arctium minus ssp. pubensa BurdockAsteraceae1951 and 1958 only----135.3.2a1
93
Arenaria balearicaMossy SandwortCarophyllaceaeSark only--r-
94
Arenaria leptocladosSlender SandwortGosselin D2CarophyllaceaeUnder-recorded-o--46.1.11
95
Arenaria montanaLarge-flowered SandwortCarophyllaceaeKnown in 1 site at Le Gouffre for last 25 yearsr---46.1.51
96
Arenaria serpyllifoliaThyme-leaved SandwortBabingtonCarophyllaceaeShort coastal turfococ1146.1.15
97
Aristolochia clematitisBirthwortArisotochiaceaeGarden escape, 1 site at Bordeaux since 1992 - now gone----25.2.12
98
Armeria maritimaThrift or Sea PinkVazon PeatPlumbaginaceaeAll around the coastcccc2648.2.13
99
Armeria maritima ssp. maritimaPlumbaginaceaeLe Portelet Bay, 2021r---
100
Armoracia rusticanaHorse-radishBrassicaceaePersisting from cultivation: mostly sandy coastal sites; also Reservoiroo--62.13.13