United Kingdom

Alpine ibex

Capra ibex

Alpine Rock-Cress

Arabis alpina

American red squirrel

Tamiasciurus hudsonicus

Australian King-Parrot

Alisterus scapularis

Beggar'S-Buttons

Arctium lappa

Black Bent

Agrostis gigantea

Aconite

Aconitum napellus

Critically Endangered

Ecoregions

Celtic broadleaf forests

Temperate Broadleaf & Mixed Forests · Palearctic

English Lowlands beech forests

Temperate Broadleaf & Mixed Forests · Palearctic

North Atlantic moist mixed forests

Temperate Broadleaf & Mixed Forests · Palearctic

Caledon conifer forests

Temperate Coniferous Forests · Palearctic

All Species in United Kingdom

bigpod sesbania

Sesbania herbacea

Big quakinggrass

Briza maxima

Big-Seed False Flax

Camelina sativa

Extinct

Billard's Bridewort

Spiraea billardii

Billion-Dollar Grass

Echinochloa frumentacea

Birdbill Dayflower

Commelina diffusa

Birdeye speedwell

Veronica persica

Bird-In-A-Bush

Corydalis solida

Bird'S-Eye Gilia

Gilia tricolor

birthwort

Aristolochia clematitis

Bicolored trailing ant

Monomorium floricola

Bieberstein's Crocus

Crocus speciosus

Bieberstein's freshwater crab

Potamon ibericum

Big-Bract Vervain

Verbena bracteata

Bigcone Pine

Pinus coulteri

Bighead knapweed

Centaurea macrocephala

Big-laurel

Magnolia grandiflora

Big-Leaved Periwinkle

Vinca major

black rat

Rattus rattus

Extinct

black Sea jellyfish

Blackfordia virginica

Black-Seed Proso Millet

Panicum miliaceum

black slug

Milax nigricans

Black soldier fly

Hermetia illucens

Blackspot hornpoppy

Glaucium corniculatum

Black Spruce

Picea mariana

Bithynian vetch

Vicia bithynica

Bitternut

Carya cordiformis

Bitter Vetch

Vicia ervilia

Black bamboo

Phyllostachys nigra

Bladder Campion

Silene latifolia

Bladder Ketmia

Hibiscus trionum

Bladdernut

Staphylea pinnata

Bleeding-Heart

Dicentra formosa

Blessed milkthistle

Silybum marianum

Blindeyes

Papaver dubium

Blood Ragweed

Ambrosia trifida

Bloody-Butcher

Pulmonaria officinalis

Vulnerable

Bloody geranium

Geranium sanguineum

bloody-red shrimp

Hemimysis anomala

black-tailed jackrabbit

Lepus californicus

black-tailed prairie dog

Cynomys ludovicianus

Black-throated Tit

Aegithalos concinnus

Black Vine Weevil

Otiorhynchus sulcatus

Black wattle

Acacia mearnsii

Blackwell Switch Grass

Panicum virgatum

Black-Widow

Geranium phaeum

Blackwood

Acacia melanoxylon

Blossom-headed Parakeet

Psittacula roseata

Blotched Spurge

Euphorbia maculata

Blue Cardinal Flower

Lobelia siphilitica

Blue Comfrey

Symphytum uplandicum

Blue Corn-lily

Aristea ecklonii

Bluecrown passionflower

Passiflora caerulea

Blue Crystalwort

Riccia crystallina

Blue Eared-Pheasant

Crossoptilon auritum

Blue Eryngo

Eryngium planum

Boar Thistle

Cirsium arvense

Boccone's sandspurry

Spergularia bocconei

bogan-flea

Calotis hispidula

Bog Arum

Calla palustris