Colombia

Black mimosa

Mimosa pigra

Black Nightshade

Solanum nigrum

Black oak

Trigonobalanus excelsa

black-olive

Terminalia buceras

Black Oropendola

Psarocolius guatimozinus

Argentine cedar

Cedrela fissilis

Argentine needlegrass

Nassella tenuissima

Argentine senna

Senna corymbosa

Argyle apple

Eucalyptus cinerea

Aristolochia-leaved morning-glory

Ipomoea aristolochiifolia

Arizona cottontop

Digitaria californica

armored rat

Hoplomys gymnurus

Arrocillo

Paspalum paniculatum

Arrowleaf elephant's ear

Xanthosoma sagittifolium

Arrowleaf sida

Sida rhombifolia

Arrowroot

Maranta arundinacea

Arsenic bush

Senna septemtrionalis

Artemisia

Artemisia vulgaris

Atlantic Giant Pumpkin

Cucurbita maxima

Atlantic Mudwort

Limosella australis

Atlantic Yellow-nosed Albatross

Thalassarche chlororhynchos

Atrato Glass Frog

Hyalinobatrachium aureoguttatum

Audubon's Shearwater

Puffinus lherminieri

aurochs

Bos taurus

Arthrorhaphis citrinella

Ash-breasted Antbird

Myrmoborus lugubris

Ashen hoarypea

Tephrosia cinerea

ashy-bellied oldfield mouse

Thomasomys cinereiventer

Asian crabgrass

Digitaria bicornis

Asian watermeal

Wolffia globosa

Asparagus fern

Asparagus densiflorus

Asian date mussel

Arcuatula senhousia

Asian green mussel

Perna viridis

Asian pigeonwings

Clitoria ternatea

Asian swordfern

Nephrolepis brownii

Asian Tiger Mosquito

Aedes albopictus

Asparagus

Asparagus officinalis

ass

Equus asinus

assai palm

Euterpe oleracea

Asterisk Lichen

Arthonia radiata

Bell-Bean

Vicia faba

Bellyache

Rauvolfia viridis

Bellyache bush

Jatropha gossypiifolia

Belted Kingfisher

Megaceryle alcyon

Belus Swallowtail

Battus belus

Bending Bittercress

Cardamine flexuosa

Bengal trumpet

Thunbergia grandiflora

Berlepsch's Tinamou

Crypturellus berlepschi

Bermudagrass

Cynodon dactylon

Bermuda pigroot

Sisyrinchium micranthum

Bermuda Thistle

Argemone mexicana

Bertero's mistletoe

Phoradendron berteroanum

bigpod sesbania

Sesbania herbacea

Big quakinggrass

Briza maxima

Big-Sting Nettle

Urtica dioica

bilimbi

Averrhoa bilimbi

Billed Toad

Rhinella macrorhina

Birdbill Dayflower

Commelina diffusa

bird-chilli

Capsicum frutescens

Birdeye speedwell

Veronica persica