Canada

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

alpine lady's-mantle

Alchemilla alpina

All Species in Canada

high arctic dandelion

Taraxacum hyparcticum

Highbush Cranberry

Viburnum edule

Highclere holly

Ilex altaclerensis

Highland Grey

Eudonia alpina

Highland Rush

Oreojuncus trifidus

High mallow

Malva sylvestris

Highwater Grass

Sporobolus pumilus

Hiller's spider beetle

Pseudeurostus hilleri

Hill's Oak

Quercus ellipsoidalis

Hill'S Pondweed

Potamogeton hillii

Himalayan Elecampane

Inula racemosa

Himalayan knotweed

Koenigia polystachya

Hispid Hedge-Nettle

Stachys hispida

Hispid starbur

Acanthospermum hispidum

Hister beetle

Acritus nigricornis

Hjelmqvist's cotoneaster

Cotoneaster hjelmqvistii

Hoary alyssum

Berteroa incana

Hoary Cinquefoil

Potentilla argentea

hoary plantain

Plantago virginica

hoary plantain

Plantago media

hoary primrose

Primula incana

Hoary Stock

Matthiola incana

Hoary Verbena

Verbena stricta

Hoary Whitlow-Grass

Draba incana

Hoary Willow

Salix candida

hoary yellowcress

Rorippa barbareifolia

Hoe nightshade

Solanum physalifolium

Hollow Joe Pye Weed

Eutrochium fistulosum

Hollyberry Cotoneaster

Cotoneaster bullatus

holly fern

Polystichum lonchitis

Hollyhock

Alcea rosea

Holmes' Hawthorn

Crataegus holmesiana

Honey-comb Knot-horn

Vitula serratilineella

Honeysuckle Moth

Ypsolopha dentella

Honeyweed

Leonurus sibiricus

Hood's sedge

Carex hoodii

hooked-pepperwort

Marsilea vestita

Hooker's alpine oatgrass

Helictochloa hookeri

Hooker's cinquefoil

Potentilla hookeriana

Hooker's onion

Allium acuminatum

Hooker'S Orchid

Platanthera hookeri

Hooker's sedge

Carex hookeriana

Hooker's townsend daisy

Townsendia hookeri

Hook-Winged Tortrix Moth

Acleris effractana

Horehound

Marrubium vulgare

horn-bearing dandelion

Taraxacum ceratophorum

Horned Bladderwort

Utricularia cornuta

Horned Pondweed

Zannichellia palustris

Vulnerable

Horned Poppy

Glaucium flavum

Horn-Leaved Riverweed

Podostemum ceratophyllum

horse

Equus caballus

horsemint giant hyssop

Agastache urticifolia

Horseradish

Armoracia rusticana

Horseradish flea beetle

Phyllotreta armoraciae

Horsetail

Equisetum laevigatum

horsetail spike-rush

Eleocharis equisetoides

Extinct

Horsetail Weevil

Grypus equiseti

Houghton'S Cyperus

Cyperus houghtonii

Houghton's goldenrod

Solidago houghtonii

Houghton'S Sedge

Carex houghtoniana