United States

Aeromonas hydrophila

Aeschne à Tubercules

Aeshna tuberculifera

Afghan-Melon

Citrullus lanatus

African amaranth

Amaranthus muricatus

African asparagus fern

Asparagus asparagoides

African basil

Ocimum gratissimum

African boxthorn

Lycium ferocissimum

African bristlegrass

Setaria sphacelata

African clawed frog

Xenopus laevis

African cornflag

Chasmanthe floribunda

African couchgrass

Digitaria abyssinica

African daisy

Arctotis stoechadifolia

Gila Monster

Heloderma suspectum

African jointgrass

Hemarthria altissima

African-lily

Agapanthus praecox

African lovegrass

Eragrostis echinochloidea

African Marigold

Tagetes erecta

African pepperwort

Lepidium africanum

African senna

Senna didymobotrya

African signalgrass

Urochloa arrecta

African-Spinach

Amaranthus cruentus

African tuliptree

Spathodea campanulata

Agassiz's bloom moss

Schistidium agassizii

agate snail

Cecilioides acicula

Ageratum

Ageratum houstonianum

Agrimony

Agrimonia gryposepala

Agrimony Rust

Pucciniastrum agrimoniae

Agrocybe dura

Agrocybe firma

Ailanthus

Ailanthus altissima

Airplant

Tillandsia polystachia

Airplant

Tillandsia gardneri

Akulikuli-Kula

Portulaca oleracea

Alaska Bunchberry

Cornus unalaschkensis

Alaska Clubmoss

Diphasiastrum sitchense

Alaska Larch

Larix laricina

Alaska Large Awn Sedge

Carex macrochaeta

Albanian spurge

Euphorbia characias

Alberta Spruce

Picea glauca

Alder Leaf Gall Mite

Eriophyes laevis

Alder-Leaved Viburnum

Viburnum lantanoides

Alder Scalycap

Flammula alnicola

alder silk moss

Plagiothecium latebricola

Alder Tongue

Taphrina alni

Alder wooly sawfly

Eriocampa ovata

Alecost

Tanacetum balsamita

Aleppo Avens

Geum aleppicum

Aleppo Grass

Sorghum halepense

Aleutian Maidenhair

Adiantum aleuticum

Alewife Floater

Utterbackiana implicata

Alexander palm

Ptychosperma elegans

Alexandra palm

Archontophoenix alexandrae

Alexandrian laurel

Calophyllum inophyllum

Alfalfa

Medicago sativa

Alfalfa blotch leafminer

Agromyza frontella

Alfalfa Butterfly

Colias eurytheme

Alfalfa dodder

Cuscuta approximata

alfalfa leaf-cutter bee

Megachile rotundata

Algae

Cutleria cylindrica

Algal Pin Lichen

Chaenothecopsis pusiola