United States

Highland Rush

Oreojuncus trifidus

High mallow

Malva sylvestris

Highwater Grass

Sporobolus pumilus

Hill'S Pondweed

Potamogeton hillii

Hilograss

Paspalum conjugatum

Pixie Foam

Stereocaulon pileatum

Cabbage White

Pieris rapae

Diamond Northern Caddisfly

Limnephilus rhombicus

Davis's Tree Cricket

Oecanthus exclamationis

Himalayan Elecampane

Inula racemosa

Himalayan ginger

Hedychium gardnerianum

Hinoki false cypress

Chamaecyparis obtusa

Himalayan honeysuckle

Leycesteria formosa

Calogaya pusilla

Hintapink

Russula paludosa

Dense-flowered Fumitory

Fumaria densiflora

Delicate Notchwort

Heterogemma capitata

Kumquat

Citrus japonica

hirsutus mealybug

Maconellicoccus hirsutus

Asian blue worm

Perionyx excavatus

Hispid starbur

Acanthospermum hispidum

Hjelmqvist's cotoneaster

Cotoneaster hjelmqvistii

Hoary alyssum

Berteroa incana

Hoary Cinquefoil

Potentilla argentea

hoary plantain

Plantago media

Bluehead gilia

Gilia capitata

Hoary Stock

Matthiola incana

Hoary Verbena

Verbena stricta

Hoary Whitlow-Grass

Draba incana

Hoary Willow

Salix candida

Hoe nightshade

Solanum physalifolium

Duckweed Weevil

Tanysphyrus lemnae

Seine Riverbank Ground Beetle

Bembidion tetracolum

Downy Rainbow

Villosa villosa

Hog louse

Haematopinus suis

Hollow Joe Pye Weed

Eutrochium fistulosum

Hollyberry Cotoneaster

Cotoneaster bullatus

Hollyhock

Alcea rosea

Buff-breasted Sandpiper

Calidris subruficollis

Holly oak

Quercus ilex

Holly osmanthus

Osmanthus heterophyllus

Holmes' Hawthorn

Crataegus holmesiana

Holywood

Guaiacum sanctum

Ditch fimbry

Fimbristylis schoenoides

Dotted Watermeal

Wolffia borealis

Diverse Porpidia Lichen

Porpidia contraponenda

Band-Winged Meadowhawk

Sympetrum semicinctum

Dogwood Golden Canker

Aurantioporthe corni

Honey Fungus

Armillaria mellea

Iberian knapweed

Centaurea iberica

Honduras mahogany

Swietenia macrophylla

Honeycomb Coral Slime Mold

Ceratiomyxa fruticulosa

Plant bug

Deraeocoris ruber

Plant bug

Orthotylus viridinervis

Plant bug

Orthocephalus saltator

Plitt'S Rock Shield

Xanthoparmelia plittii

Honeysuckle Moth

Ypsolopha dentella

Honeyweed

Leonurus sibiricus

Honeyweed

Leonurus japonicus

American Wormseed

Dysphania ambrosioides