United States

Burclover

Medicago polymorpha

Bur-daisy

Calotis cuneifolia

Burdock Neb

Metzneria lappella

Bur Marigold

Bidens laevis

Burmese fishtail palm

Caryota mitis

Burning Bush

Euonymus alatus

Burningbush

Dictamnus albus

brown slug

Deroceras laeve

Brown Thrasher

Toxostoma rufum

Brown-Toed Forest Fly

Xylota segnis

Browntop millet

Urochloa ramosa

Brown Widow

Latrodectus geometricus

Brussels riverbank ground beetle

Bembidion bruxellense

Bryobacter aggregatus

Bryoria capillaris

Bryoria implexa

Bryozoan

Watersipora subtorquata

Buck Brush

Symphoricarpos orbiculatus

Buckhorn plantain

Plantago coronopus

Buckwheat

Fagopyrum esculentum

Buddha's hand

Alocasia cucullata

Bud Moth

Spilonota ocellana

Buellia griseovirens

Buffalo Currant

Ribes aureum

Buffalo Spinach

Enydra fluctuans

Buffelgrass

Cenchrus ciliaris

Buff-Tipped Marble

Hedya ochroleucana

Bugleweed

Lycopus europaeus

Bugleweed

Lycopus uniflorus

Bugleweed

Lycopus virginicus

Bulb and potato aphid

Rhopalosiphoninus latysiphon

Bulbil bugle-lily

Watsonia meriana

bulb nematode

Ditylenchus dipsaci

Bulbous airplant

Tillandsia bulbosa

Bulbous Bitter-Cress

Cardamine bulbosa

Bulbous Bluegrass

Poa bulbosa

Cabbage Moth

Plutella xylostella

cabbage rose

Rosa centifolia

Cabbage tree

Cordyline australis

cacticans mealybug

Rhizoecus cacticans

Cactus Lichen

Agonimia opuntiella

cactus scale

Diaspis echinocacti

Cactus spurge

Euphorbia ingens

cadelle beetle

Tenebroides mauritanicus

Caesarweed

Urena lobata

Cajeput tree

Melaleuca linariifolia

Calendula fly

Napomyza lateralis

Calico-Bush

Kalmia latifolia

Californian Burr

Xanthium orientale

California pear sawfly

Pristiphora abbreviata

California scale

Diaspidiotus perniciosus

Cape-ivy

Delairea odorata

Cape leadwort

Plumbago auriculata

Cape province pygmyweed

Crassula multicava

Caper Spurge

Euphorbia lathyris

Capeweed

Arctotheca calendula

Capillary Beakrush

Rhynchospora capillacea

capillary thread moss

Meesia uliginosa

Capitate Truffleclub

Tolypocladium capitatum

Capped Orb Mussel

Musculium lacustre