United States

Agrimony

Agrimonia eupatoria

Ajuga

Ajuga reptans

Alder

Alnus glutinosa

Alder leaf beetle

Agelastica alni

Alder Spittlebug

Aphrophora alni

All Species in United States

Wooly blackberry

Rubus canescens

Worm-Eating Warbler

Helmitheros vermivorum

Wormseed

Dysphania anthelmintica

Wormseed wallflower

Erysimum cheiranthoides

Wright's waternymph

Najas wrightiana

wrinkled club

Clavulina rugosa

Wrinkled Cortinarius

Cortinarius corrugatus

Wrinkled Crust

Phlebia radiata

Wrinkled medick

Medicago rugosa

Wrinkled Peach

Rhodotus palmatus

Wrinkled Psathyrella

Typhrasa gossypina

Data Deficient

Wrinkled Shingle Lichen

Pannaria lurida

wrinkled snail

Xeroplexa intersecta

Wrinkled Thimble Morel

Verpa bohemica

wrinkle-leaved moss

Rhytidium rugosum

Critically Endangered

Wrinkly Stinkhorn

Phallus rugulosus

Wulf's peat moss

Sphagnum wulfianum

Vulnerable

Yam bean

Pachyrhizus erosus

Yarrow Plume

Gillmeria pallidactyla

Yate

Eucalyptus cornuta

Yellow Anemone

Anemone ranunculoides

Yellow-Banded Bumble Bee

Bombus terricola

Vulnerable

Yellowband iris

Iris orientalis

Yellow Barklouse

Valenzuela flavidus

Yellow Bartonia

Bartonia virginica

Yellow-Bellied Flycatcher

Empidonax flaviventris

Yellow-bellied Sapsucker

Sphyrapicus varius

Yellow-billed Cardinal

Paroaria capitata

Yellow-billed Cuckoo

Coccyzus americanus

Yellow bird's-foot

Ornithopus pinnatus

Yellow bluestem

Bothriochloa ischaemum

Yellow-Breasted Chat

Icteria virens

Yellow bush lupine

Lupinus arboreus

Yellow butterfly palm

Dypsis lutescens

Yellow Carnival Candy Slime

Arcyria obvelata

Yellow-chevroned Parakeet

Brotogeris chiriri

Yellow Club

Clavulinopsis helvola

Yellow Cobweb

Xenasmatella vaga

Yellow-collared Lovebird

Agapornis personatus

Yellow Collar Stubble Lichen

Calicium trabinellum

Yellow Coral Mushroom

Ramaria rasilispora

yellow coralroot

Corallorhiza trifida

Yellow Cowlily

Nuphar lutea

Yellow crabgrass

Digitaria fuscescens

Yellowcress

Nasturtium sterile

Yellow crocus

Crocus flavus

Yellow-crowned Night-Heron

Nyctanassa violacea

Yellow-crowned Parrot / Yellow-crowned Amazon

Amazona ochrocephala

Yellow Deer Mushroom

Pluteus chrysophlebius

Yellowdrop Milkcap

Lactarius chrysorrheus

Yellow Dung Fly

Scathophaga stercoraria

Yellow-Edged Frost Lichen

Physconia enteroxantha

Yellow-faced bell moth

Notocelia cynosbatella

Yellow-faced Grassquit

Tiaris olivaceus

Yellow Fairy Cups

Calycina citrina

Yellow Fan

Spathularia flavida

Yellow fever mosquito

Aedes aegypti

Yellow Fieldcap

Bolbitius titubans

Yellow flame

Peltophorum pterocarpum

Yellowfoot

Craterellus tubaeformis