Life
All (in this database) Plants list (with English common names): Part H
A
B
BU
C
CR
D
E
F
G
H
I
J
K
L
M
MT
N
O
P
PR
Q
R
S
SM
T
U
V
W
Y
Z
Hackberries
(
Celtis
)
Hackberry
(
Celtis occidentalis
)
Georgia
Hackberry
(
Celtis tenuifolia
)
Mississippi
Hackberry
(
Celtis laevigata
)
Southern
Hackberry
(
Celtis laevigata
)
Hackmatack
(
Populus balsamifera
)
Hackmatack
(
Larix laricina
)
Hackmatack
(
Larix occidentalis
)
Hair Fescue
(
Festuca filiformis
)
Hair Grass
(
Aira
)
Hair Grass
(
Agrostis hyemalis
)
Common
Hair Grass
(
Deschampsia flexuosa
)
Blue
Hair-grass
(
Koeleria glauca
)
Crested
Hair-grass
(
Koeleria macrantha
)
Crested
Hair-grass
(
Koeleria pyramidata
)
Early
Hair-grass
(
Aira praecox
)
Grey
Hair-grass
(
Corynephorus canescens
)
Tufted
Hair-grass
(
Deschampsia cespitosa
)
Wavy
Hair-grass
(
Deschampsia flexuosa
)
Hair-spine prickly-pear
(
Opuntia polyacantha
)
Hairy Aster
(
Aster pilosus
)
Hairy Balm-of-Gilead
(
Populus balsamifera
var.
subcordata
)
Hairy Balsamroot
(
Balsamorhiza hirsuta
)
Hairy Beggarsticks
(
Bidens pilosa
)
Hairy Bindweed
(
Calystegia pulchra
)
Hairy Bitter-cress
(
Cardamine hirsuta
)
Hairy Buttercup
(
Ranunculus sardous
)
Hairy caltrop
(
Kallstroemia hirsutissima
)
Hairy Catchfly
(
Silene dichotoma
)
Hairy Chervil
(
Chaerophyllum hirsutum
)
Hairy Chess
(
Bromus commutatus
)
Hairy Cliff-brake
(
Pellaea atropurpurea
)
Hairy Coneflower
(
Rudbeckia hirta
)
Hairy Evening-primrose
(
Oenothera deltoides
)
Hairy Evening-primrose
(
Oenothera pubens
)
Hairy False Bindweed
(
Calystegia pellita
)
Hairy Finger-grass
(
Digitaria sanguinalis
)
Hairy Fleabane
(
Conyza bonariensis
)
Hairy Galingsoga
(
Galinsoga ciliata
)
Hairy Goldenrod
(
Solidago hispida
)
Low
Hairy Ground-cherry
(
Physalis pubescens
)
Hairy gumweed
(
Grindelia hirsutula
)
Hairy Hawkbit
(
Leontodon taraxacoides
)
Hairy Honeysuckle
(
Lonicera hirsuta
)
Hairy Honeysuckle
(
Lonicera hispidula
)
Hairy Lip Fern
(
Cheilanthes lanosa
)
Hairy Lousewort
(
Pedicularis hirsuta
)
Hairy Manzanita
(
Arctostaphylos columbiana
)
Hairy Medick
(
Medicago polymorpha
)
Hairy Melick
(
Melica ciliata
)
Hairy milk-vetch
(
Astragalus inflexus
)
Hairy Nightshade
(
Solanum luteum
)
Hairy Nightshade
(
Solanum sarrachoides
)
Hairy Oat-grass
(
Avenula pubescens
)
Hairy Owl-clover
(
Orthocarpus hispidus
)
Hairy Paintbrush
(
Castilleja pilosa
)
Hairy Rock-cress
(
Arabis hirsuta
)
Hairy Rocket
(
Erucastrum gallicum
)
Hairy Rupturewort
(
Herniaria hirsuta
)
Hairy Sedge
(
Carex hirta
)
Hairy St John's-wort
(
Hypericum hirsutum
)
Hairy Tare
(
Vicia hirsuta
)
Hairy Vetch
(
Vicia hirsuta
)
Hairy Vetch
(
Vicia villosa
)
Hairy Vetchling
(
Lathyrus hirsutus
)
Hairy Violet
(
Viola hirta
)
Small-flowered
Hairy Willow-herb
(
Epilobium parviflorum
)
Hairy Willow-weed
(
Epilobium hirsutum
)
Hairy Wood-rush
(
Luzula pilosa
)
Hairyfruit Chervil
(
Chaerophyllum tainturieri
)
Hairy-fruit Smoot Dewberry
(
Rubus lasiococcus
)
Hairy-leaf Dewberry
(
Rubus plus
)
Hairy-stem Gooseberry
(
Ribes hirtellum
)
Hairy-stemmed Checker-mallow
(
Sidalcea hirtipes
)
Halberd Willow
(
Salix hastata
)
Halberd-leaved Rose Mallow
(
Hibiscus militaris
)
Halberd-leaved Violet
(
Viola hastata
)
Halfmoon milk-vetch
(
Astragalus allochrous
)
Hall's Aster
(
Aster chilensis
ssp.
hallii
)
Hall's Desert-parsley
(
Lomatium hallii
)
Hall's Isopyrum
(
Isopyrum hallii
)
Hall's Lomatium
(
Lomatium hallii
)
Hall's milk-vetch
(
Astragalus hallii
)
Hall's Mule's-ears
(
Wyethia elata
)
Hall's Thistle
(
Cirsium hallii
)
Hall's Violet
(
Viola hallii
)
Halogeton
(
Halogeton
)
Hamblen's Desert-parsley
(
Lomatium hambleniae
)
Hamblen's Lomatium
(
Lomatium hambleniae
)
Hamilton's milk-vetch
(
Astragalus hamiltonii
)
Handsome scorpion-weed
(
Phacelia peirsoniana
)
Hanes' Blackberry
(
Rubus hanesi
)
Hanging-pod milk-vetch
(
Astragalus arrectus
)
Harbinger-of-spring
(
Erigenia
)
Harbison Willow
(
Salix caroliniana
)
Hard Pine
(
Pinus rigida
)
Hard Rush
(
Juncus inflexus
)
Hard Shield Fern
(
Polystichum aculeatum
)
Hard-fern
(
Blechnum spicant
)
Hard-grass
(
Parapholis strigosa
)
Hardhack
(
Spiraea tomentosa
)
Hardheads
(
Centaurea nigra
)
Hard-leaved Goldenrod
(
Solidago rigida
)
Hardy Catalpa
(
Catalpa speciosa
)
Hardy Ice Plant
(
Delosperma cooperi
)
Hardy Purple-Flowered Iceplant
(
Delosperma cooperi
)
Harebell
(
Campanula rotundifolia
)
Arctic
Harebell
(
Campanula uniflora
)
Parry's
Harebell
(
Campanula parryi
)
Piper's
Harebell
(
Campanula piperi
)
Rough
Harebell
(
Campanula scabrella
)
Scouler's
Harebell
(
Campanula scouleri
)
Hare's Tail
(
Eriophorum callitrix
)
Hare's-ear Mustard
(
Conringia orientalis
)
Hare's-foot Clover
(
Trifolium arvense
)
Hare's-tail
(
Lagurus ovatus
)
Hare's-tail Cotton-grass
(
Eriophorum vaginatum
)
Harlequin dutchman's-pipe
(
Aristolochia anguicida
)
Harlequin scorpion-weed
(
Phacelia howelliana
)
Harrison's milk-vetch
(
Astragalus harrisonii
)
Harsh Dewberry
(
Rubus severus
)
Harsh Paintbrush
(
Castilleja hispida
)
Hartford Fern
(
Lygodium palmatum
)
American
Harts-tongue Fern
(
Asplenium scolopendrium
v.
americana
)
European
Harts-tongue Fern
(
Asplenium scolopendrium
)
Hartweg's milk-vetch
(
Astragalus hartwegii
)
Harvest Brodiaea
(
Brodiaea coronaria
)
Compact
Harvest Brodiaea
(
Brodiaea congesta
)
Harvest Fiddleneck
(
Amsinckia retorsa
)
Hastate Orache
(
Atriplex prostrata
)
Havard's fiddleleaf
(
Nama havardii
)
Havard's gumweed
(
Grindelia havardii
)
Havard's oak
(
Quercus havardii
)
Black
Haw
(
Viburnum prunifolium
)
Blue
Haw
(
Viburnum rufidulum
)
Hawkbit
(
Leontodon
)
Autumn
Hawkbit
(
Leontodon autumnalis
)
Fall
Hawkbit
(
Leontodon autumnalis
)
Hairy
Hawkbit
(
Leontodon taraxacoides
)
Rough
Hawkbit
(
Leontodon hispidus
)
Hawk's Beard
(
Crepis
)
Beaked
Hawk's-beard
(
Crepis vesicaria
)
Bristly
Hawk's-beard
(
Crepis setosa
)
French
Hawk's-beard
(
Crepis nicaeensis
)
Marsh
Hawk's-beard
(
Crepis paludosa
)
Narrow-leaf
Hawk's-beard
(
Crepis tectorum
)
Northern
Hawk's-beard
(
Crepis mollis
)
Rough
Hawk's-beard
(
Crepis biennis
)
Smooth
Hawk's-beard
(
Crepis capillaris
)
Wall
Hawk's-beard
(
Crepis tectorum
)
Hawkweed
(
Hieracium
)
Hawkweed
(
Pilosella
)
Hawkweed
(
Hieracium umbellatum
)
Hawkweed Oxtongue
(
Picris hieracioides
)
Mouse-ear
Hawkweed
(
Pilosella officinarum
)
Orange
Hawkweed
(
Pilosella aurantiaca
)
Parsley
Haw
(
Crataegus marshallii
)
Rusty Black
Haw
(
Viburnum rufidulum
)
Southern Black
Haw
(
Viburnum rufidulum
)
Hawthorn
(
Crataegus monogyna
)
Dotted
Hawthorn
(
Crataegus punctata
)
English
Hawthorn
(
Crataegus laevigata
)
Fan Leaf
Hawthorn
(
Crataegus flabellata
)
Large-fruited
Hawthorn
(
Crataegus punctata
)
Midland
Hawthorn
(
Crataegus laevigata
)
Parsley
Hawthorn
(
Crataegus marshallii
)
Hawthorns
(
Crataegus
)
Hayden's Clover
(
Trifolium haydenii
)
Hay-scented Fern
(
Dennstaedtia punctilobula
)
Hay-scented Ferns
(
Dennstaedtia
)
Hazel
(
Corylus avellana
)
Heacock's prickly-pear
(
Opuntia heacockiae
)
Dragon
Head
(
Dracocephalum
)
Many
Headed Wood-rush
(
Luzula multiflora
)
Elephant's
Head
(
Pedicularis groenlandica
)
Steer's
Head
(
Dicentra uniflora
)
Heal-all
(
Prunella vulgaris
)
White
Heart Hickory
(
Carya tomentosa
)
Purple
Heart Wood
(
Copaifera pubiflora
)
Bleeding
Heart
(
Dicentra eximia
)
Common Bleeding
Heart
(
Dicentra spectabilis
)
Floating
Heart
(
Nymphoides
)
Heart-leaf hedge-nettle
(
Stachys nuttallii
)
Heartleaved Buttercup
(
Ranunculus cardiophyllus
)
Heartleaved Umbrellawort
(
Mirabilis nyctaginea
)
Pacific Bleeding
Heart
(
Dicentra formosa
)
Heart's Ease
(
Viola
)
Heart's Ease
(
Viola tricolor
)
Small-flowered Bleeding
Heart
(
Dicentra pauciflora
)
Heartweed
(
Persicaria maculosa
)
Western Bleending
Heart
(
Dicentra formosa
)
Heath Bedstraw
(
Galium saxatile
)
Heath Burweed
(
Ambrosia chamissonis
)
Heath Cudweed
(
Gnaphalium sylvaticum
)
Heath Dog-violet
(
Viola canina
)
Heath Family
(
Ericaceae
)
Heath Groundsel
(
Senecio sylvaticus
)
Heath Milkwort
(
Polygala serpyllifolia
)
Heath Rush
(
Juncus squarrosus
)
Heath Speedwell
(
Veronica officinalis
)
Heath Spotted Orchid
(
Dactylorhiza maculata
)
Heath Violet
(
Viola canina
)
Heath Wood-rush
(
Luzula multiflora
)
Blue
Heath
(
Phyllodoce caerulea
)
Cross-leaved
Heath
(
Erica tetralix
)
Heather
(
Calluna vulgaris
)
Heath-grass
(
Danthonia decumbens
)
Heath-leaved Aster
(
Aster pansus
)
Hedge Bedstraw
(
Galium album
)
Great
Hedge Bedstraw
(
Galium mollugo
)
Hedge Bindweed
(
Calystegia sepium
)
Trailing
Hedge Bindweed
(
Calystegia sepium
ssp.
angulata
)
Hedge False Bindweed
(
Calystegia sepium
)
Hedge Hyssop
(
Gratiola
)
Hedge Mustard
(
Sisymbrium officinale
)
Tall
Hedge Mustard
(
Sisymbrium loeselii
)
Hedge Nettle
(
Stachys
)
Hedge Vetch
(
Vicia sepium
)
Hedge Woundwort
(
Stachys sylvatica
)
Hedgehod Dogtail
(
Cynosurus echinatus
)
Hedgenettle Betony
(
Stachys annua
)
Hedgenettle Larkspur
(
Delphinium stachydeum
)
Annual
hedge-nettle
(
Stachys annua
)
Bugle
hedge-nettle
(
Stachys ajugoides
)
California
hedge-nettle
(
Stachys bullata
)
Clingman's
hedge-nettle
(
Stachys clingmanii
)
Coastal
hedge-nettle
(
Stachys chamissonis
)
Common
hedge-nettle
(
Stachys officinalis
)
Cooley's
Hedge-nettle
(
Stachys cooleyae
)
Drummond's
hedge-nettle
(
Stachys drummondii
)
Epling's
hedge-nettle
(
Stachys eplingii
)
Florida
hedge-nettle
(
Stachys floridana
)
German
hedge-nettle
(
Stachys germanica
)
Heart-leaf
hedge-nettle
(
Stachys nuttallii
)
Hyssop-leaf
hedge-nettle
(
Stachys hyssopifolia
)
Mexican
Hedge-nettle
(
Stachys mexicana
)
Rigid
Hedge-nettle
(
Stachys rigida
)
Rock
hedge-nettle
(
Stachys bigelovii
)
Rothrock's
hedge-nettle
(
Stachys rothrockii
)
Scarlet
hedge-nettle
(
Stachys coccinea
)
Short-spike
hedge-nettle
(
Stachys pycnantha
)
Smooth
hedge-nettle
(
Stachys tenuifolia
)
Sonoma
hedge-nettle
(
Stachys stricta
)
Swamp
Hedge-nettle
(
Stachys palustris
)
White-stem
hedge-nettle
(
Stachys albens
)
Woolly
hedge-nettle
(
Stachys byzantina
)
Hedge-parsley
(
Torilis
)
Japanese
Hedge-parsley
(
Torilis japonica
)
Knotted
Hedge-parsley
(
Torilis nodosa
)
Upright
Hedge-parsley
(
Torilis japonica
)
Hedgerow Crane's-bill
(
Geranium pyrenaicum
)
Hediondilla
(
Larrea tridentata
)
Heliotrope
(
Heliotropium
)
European
Heliotrope
(
Heliotropium europaeum
)
Garden
Heliotrope
(
Valeriana officinalis
)
Mountain
Heliotrope
(
Valeriana sitchensis
)
Seaside
Heliotrope
(
Heliotropium curassavicum
)
American False
Hellebore
(
Veratrum viride
)
American White
Hellebore
(
Veratrum viride
)
California False
Hellebore
(
Veratrum californicum
)
False
Hellebore
(
Veratrum
)
Green False
Hellebore
(
Veratrum viride
)
Helleborine
(
Epipactis
)
Broad-leaved
Helleborine
(
Epipactis helleborine
)
Dark-red
Helleborine
(
Epipactis atrorubens
)
False
Helleborine
(
Veratrum album
)
Giant
Helleborine
(
Epipactis gigantea
)
Marsh
Helleborine
(
Epipactis palustris
)
Narrow-leaved
Helleborine
(
Cephalanthera longifolia
)
Red
Helleborine
(
Cephalanthera rubra
)
Hemlock
(
Conium maculatum
)
Black
Hemlock
(
Tsuga mertensiana
)
Carolina
Hemlock
(
Tsuga caroliniana
)
Eastern
Hemlock
(
Tsuga canadensis
)
Lowland
Hemlock
(
Tsuga heterophylla
)
Mountain
Hemlock
(
Tsuga mertensiana
)
Pacific
Hemlock
(
Tsuga heterophylla
)
Hemlock-parsley
(
Conioselinum
)
Poison
Hemlock
(
Conium
)
Poison
Hemlock
(
Conium maculatum
)
Hemlocks
(
Tsuga
)
Water
Hemlock
(
Cicuta
)
Western
Hemlock
(
Tsuga heterophylla
)
Hemp
(
Cannabis sativa
)
Hemp Dogbane
(
Apocynum cannabinum
)
Hemp Family
(
Cannabaceae
)
Hemp Nettle
(
Galeopsis
)
Common
Hemp Nettle
(
Galeopsis tetrahit
)
Red
Hemp Nettle
(
Galeopsis ladanum
)
Hemp Sesbania
(
Sesbania exaltata
)
Hemp-agrimony
(
Eupatorium cannabinum
)
Indian
Hemp
(
Apocynum
)
Indian
Hemp
(
Apocynum cannabinum
)
Indian
Hemp
(
Apocynum sibiricum
)
Bifid
Hemp-nettle
(
Galeopsis bifida
)
Downy
Hemp-nettle
(
Galeopsis segetum
)
Field
Hemp-nettle
(
Galeopsis ladanum
)
Large-flowered
Hemp-nettle
(
Galeopsis speciosa
)
Narrow-leaved
Hemp-nettle
(
Galeopsis angustifolia
)
Red
Hemp-nettle
(
Galeopsis angustifolia
)
Rajmahal
hemp?
(
Marsdenia tenacissima
)
Hen-and-Chickens
(
Sempervivum tectorum
)
Henbane
(
Hyoscyamus
)
Black
Henbane
(
Hyoscyamus niger
)
White
henbane
(
Hyoscyamus albus
)
Henbit
(
Lamium amplexicaule
)
Henbit Dead-nettle
(
Lamium amplexicaule
)
Henderson's Angelica
(
Angelica hendersonii
)
Henderson's Brodiaea
(
Brodiaea hendersonii
)
Henderson's Checker-mallow
(
Sidalcea hendersonii
)
Henderson's Desert-parsley
(
Lomatium hendersonii
)
Henderson's Gooseberry
(
Ribes hendersonii
)
Henderson's Lomatium
(
Lomatium hendersonii
)
Henderson's Phlox
(
Phlox hendersonii
)
Henderson's Shooting Star
(
Dodecatheon hendersonii
)
Hepatica
(
Hepatica nobilis
)
Herb Robert
(
Geranium robertianum
)
Herba Impia
(
Filago vulgaris
)
Herbaceous Blackberry
(
Rubus junceus
)
Herbaceous Sea-blite
(
Suaeda maritima
)
Herb-Paris
(
Paris quadrifolia
)
Hercules' Club
(
Aralia spinosa
)
Hercules' Club Prickly-ash
(
Zanthoxylum clava-herculis
)
Herd's Grass
(
Agrostis stolonifera
ssp.
vulgaris
)
Herd's Grass
(
Phleum pratense
)
Hermit milk-vetch
(
Astragalus eremiticus
)
San José
Hesper Palm
(
Brahea brandegeei
)
California
Hesperochiron
(
Hesperochiron californicus
)
Dwarf
Hesperochiron
(
Hesperochiron pumilus
)
Green-flowered
Heucera
(
Heuchera chlorantha
)
Hevea Rubber Plant
(
Hevea brasiliensis
)
Hiba Cedar
(
Thujopsis dolabrata
)
Crimson-eyed
Hibiscus
(
Hibiscus oculiroseus
)
White
Hibiscus
(
Hibiscus oculiroseus
)
Hickories
(
Carya
)
Big Bud
Hickory
(
Carya tomentosa
)
Bigleaf Shagbark
Hickory
(
Carya laciniosa
)
Bitternut
Hickory
(
Carya cordiformis
)
Black
Hickory
(
Carya texana
)
Bottom Shellbark
Hickory
(
Carya laciniosa
)
Bull Nut
Hickory
(
Carya tomentosa
)
Carolina
Hickory
(
Carya ovata
var.
australis
)
Kingnut
Hickory
(
Carya laciniosa
)
Mockernut
Hickory
(
Carya tomentosa
)
Nutmeg
Hickory
(
Carya myristicaeformis
)
Oval Pignut
Hickory
(
Carya glabra
var.
odorata
)
Pale
Hickory
(
Carya pallida
)
Pignut
Hickory
(
Carya glabra
)
Red
Hickory
(
Carya glabra
var.
odorata
)
Sand
Hickory
(
Carya pallida
)
Scaly-barked
Hickory
(
Carya ovata
)
Shagbark
Hickory
(
Carya ovata
)
Shellbark
Hickory
(
Carya laciniosa
)
Swamp
Hickory
(
Carya aquatica
)
Swamp
Hickory
(
Carya cordiformis
)
Sweet Pignut
Hickory
(
Carya glabra
var.
odorata
)
Upland
Hickory
(
Carya ovata
)
Water
Hickory
(
Carya aquatica
)
White Heart
Hickory
(
Carya tomentosa
)
Hidden scorpion-weed
(
Phacelia inconspicua
)
Hidden-flower scorpion-weed
(
Phacelia cryptantha
)
High Blueberry
(
Vaccinium corymbosum
)
Black
High Blueberry
(
Vaccinium atrococcum
)
High Mallow
(
Malva sylvestris
)
Highbush Blackberry
(
Rubus ostryifolius
)
Highbush Blueberry
(
Vaccinium corymbosum
)
High-bush Cranberry
(
Viburnum opulus
var.
americanum
)
Highwater-shrub
(
Iva
)
Hilgard's Evening-primrose
(
Oenothera hilgardii
)
Hill locust
(
Lotus humistratus
)
Hill Mustard
(
Bunias orientalis
)
Hill Oak
(
Quercus ellipsoidalis
)
Hill Willow-herb
(
Epilobium collinum
)
Hillside Blueberry
(
Vaccinium pallidum
)
Hillside milk-vetch
(
Astragalus collinus
)
Hillside Rein-orchid
(
Habenaria elegans
)
Himalayan Balsam
(
Impatiens glandulifera
)
Himalayan Blackberry
(
Rubus discolor
)
Himalayan-berry
(
Rubus bifrons
)
Hinahina kahakai
(
Nama sandwicense
)
Hinckley's oak
(
Quercus hinckleyi
)
Hirda fruits
(
Terminalia chebula
)
Hoary Alder
(
Alnus incana
)
Hoary Alison
(
Berteroa incana
)
Hoary Alyssum
(
Berteroa incana
)
Hoary Aster
(
Machaeranthera canescens
)
Hoary Balsamroot
(
Balsamorhiza incana
)
Hoary Cinquefoil
(
Potentilla argentea
)
Hoary Cress
(
Cardaria draba
)
Hoary Mustard
(
Hirschfeldia incana
)
Hoary Phacelia
(
Phacelia incana
)
Hoary Plantain
(
Plantago media
)
Hoary Ragwort
(
Senecio erucifolius
)
Hoary Rockcress
(
Arabis puberula
)
Hoary Sagewort
(
Artemisia cana
)
Hoary Saltbush
(
Atriplex canescens
)
Hoary scorpion-weed
(
Phacelia incana
)
Hoary Stock
(
Matthiola incana
)
Hoary Vervain
(
Verbena stricta
)
Hoary Willow
(
Salix candida
)
Hoary Willow-herb
(
Epilobium parviflorum
)
Hobble-Bush
(
Viburnum alnifolium
)
Witch
Hobble
(
Viburnum alnifolium
)
Hog Peanut
(
Amphicarpaea
)
Hog Plum
(
Spondias mangifera
)
Hog Plum
(
Prunus umbellata
)
Hog-fennel
(
Oxypolis
)
Hog-weed
(
Ambrosia artemisiifolia
)
Hogweed
(
Heracleum sphondylium
)
Giant
Hogweed
(
Heracleum mantegazzianum
)
Holboell's Rockcress
(
Arabis holboellii
)
Jackson's
Hole Thistle
(
Cirsium subniveum
)
Hollies
(
Ilex
)
Holly Family
(
Aquifoliaceae
)
Braun's
Holly Fern
(
Polystichum braunii
)
Eastern
Holly Fern
(
Polystichum braunii
)
Mountain
Holly Fern
(
Polystichum scopulinum
)
Narrow
Holly Fern
(
Polystichum lonchitis
)
Northern
Holly Fern
(
Polystichum lonchitis
)
Holly Ferns
(
Polystichum
)
Western
Holly Fern
(
Polystichum scopulinum
)
American
Holly
(
Ilex opaca
)
Carolina
Holly
(
Ilex ambigua
)
Chapman's
Holly
(
Ilex longipes
)
Common
Holly
(
Ilex aquifolium
)
Dahoon
Holly
(
Ilex cassine
)
Deciduous
Holly
(
Ilex decidua
)
English
Holly
(
Ilex aquifolium
)
Mountain
Holly-fern
(
Polystichum lonchitis
)
Georgia
Holly
(
Ilex longipes
)
Hollyhock
(
Alcea rosea
)
Hollyhock Mallow
(
Malva alcea
)
Large-leaved
Holly
(
Ilex montana
)
Holly-leaf Cherry
(
Prunus ilicifolia
)
Hollyleaf Clover
(
Trifolium gymnocarpon
)
Holly-leaf Oregongrape
(
Mahonia aquifolium
)
Holly-leaved Naiad
(
Najas marina
)
Mountain
Holly
(
Ilex montana
)
Myrtle-leaved
Holly
(
Ilex myrtifolia
)
Sarvis
Holly
(
Ilex amelanchier
)
Yaupon
Holly
(
Ilex vomitoria
)
Holy Grass
(
Hierochloe
)
Honesty
(
Lunaria annua
)
Honesty
(
Lunaria rediviva
)
Honewort
(
Cryptotaenia
)
Honey Locust
(
Gleditsia triacanthos
)
Honey mesquite
(
Prosopis glandulosa
)
Honey Shucks
(
Gleditsia triacanthos
)
Honey-locusts
(
Gleditsia
)
Honeysuckle
(
Lonicera
)
Honeysuckle
(
Lonicera periclymenum
)
Honeysuckle Family
(
Caprifoliaceae
)
Bearberry
Honeysuckle
(
Lonicera involucrata
)
Blue-berried
Honeysuckle
(
Lonicera caerulea
)
Bluefly
Honeysuckle
(
Lonicera caerulea
)
Bush
Honeysuckle
(
Diervilla
)
California
Honeysuckle
(
Lonicera hispidula
)
Double
Honeysuckle
(
Lonicera conjugialis
)
Etruscan
Honeysuckle
(
Lonicera etrusca
)
European Fly
Honeysuckle
(
Lonicera xylosteum
)
Fly
Honeysuckle
(
Lonicera xylosteum
)
Glaucous
Honeysuckle
(
Lonicera dioica
)
Hairy
Honeysuckle
(
Lonicera hirsuta
)
Hairy
Honeysuckle
(
Lonicera hispidula
)
Japanese
Honeysuckle
(
Lonicera japonica
)
Mountain Fly
Honeysuckle
(
Lonicera caerulea
var.
vilosa
)
Northwest
Honeysuckle
(
Lonicera ciliosa
)
Orange
Honeysuckle
(
Lonicera ciliosa
)
Perfoliate
Honeysuckle
(
Lonicera caprifolium
)
Smooth-leaved
Honeysuckle
(
Lonicera dioica
)
Swamp Fly
Honeysuckle
(
Lonicera oblongifolia
)
Sweetberry
Honeysuckle
(
Lonicera caerulea
)
Tatarian
Honeysuckle
(
Lonicera tatarica
)
Trumpet
Honeysuckle
(
Lonicera ciliosa
)
Trumpet
Honeysuckle
(
Lonicera sempervirens
)
Twinberry
Honeysuckle
(
Lonicera involucrata
)
Utah
Honeysuckle
(
Lonicera utahensis
)
White Swamp
Honeysuckle
(
Rhododendron viscosum
)
Woodbine
Honeysuckle
(
Lonicera periclymenum
)
Yellow
Honeysuckle
(
Lonicera flava
)
American Fly
Honeysucle
(
Lonicera canadensis
)
Purple-flower
Honeysucle
(
Lonicera conjugialis
)
Tartarian
Honeysucle
(
Lonicera tatarica
)
Lesser
Honeywort
(
Cerinthe minor
)
Mt
Hood Bugbane
(
Cimicifuga laciniata
)
Hood Canary-grass
(
Phalaris paradoxa
)
Hood River milk-vetch
(
Astragalus hoodianus
)
Hooded Ladies-tresses
(
Spiranthes romanzoffiana
var.
romanzoffiana
)
Hood's Phlox
(
Phlox hoodii
)
Hook Violet
(
Viola adunca
)
Hooker's Balsamroot
(
Balsamorhiza hookeri
)
Hooker's Cinquefoil
(
Potentilla hookeriana
)
Hooker's Evening-primrose
(
Oenothera hookeri
)
Hooker's Sandwort
(
Arenaria hookeri
)
Hooker's Thistle
(
Cirsium hookerianum
)
Hoop Ash
(
Fraxinus nigra
)
Hoop-ash
(
Celtis occidentalis
)
Hoover's Lomatium
(
Lomatium tuberosum
)
Hop
(
Humulus lupulus
)
Hop Clover
(
Trifolium aureum
)
Hop Clover
(
Trifolium campestre
)
Larger
Hop Clover
(
Trifolium campestre
)
Least
Hop Clover
(
Trifolium dubium
)
Low
Hop Clover
(
Trifolium campestre
)
Small
Hop Clover
(
Trifolium dubium
)
Hop Trefoil
(
Trifolium campestre
)
Large
Hop Trefoil
(
Trifolium aureum
)
American
Hop-hornbeam
(
Ostrya virginiana
)
Hop-hornbeams
(
Ostrya
)
Hopi milk-vetch
(
Astragalus fucatus
)
Spiny
Hopsage
(
Atriplex spinosa
)
Hoptree
(
Ptelea trifoliata
)
Hoptrees
(
Ptelea
)
Horehound
(
Marrubium
)
Black
Horehound
(
Ballota nigra
)
Common
Horehound
(
Marrubium vulgare
)
Fetid
Horehound
(
Ballota
)
Water
Horehound
(
Lycopus
)
White
Horehound
(
Marrubium vulgare
)
Shaggy
Horkelia
(
Horkelia congesta
)
Tawny
Horkelia
(
Horkelia fusca
var.
fusca
)
Hornbeam
(
Carpinus betulus
)
American
Hornbeam
(
Carpinus caroliniana
)
Hornbeams
(
Carpinus
)
Horned Pansy
(
Viola cornuta
)
Horned Pondweed
(
Zannichellia
)
Horned Pondweed
(
Zannichellia palustris
)
Horned Rush
(
Rhynchospora corniculata
)
Red
Horned-poppy
(
Glaucium corniculatum
)
Yellow
Horned-poppy
(
Glaucium flavum
)
Horn's milk-vetch
(
Astragalus hornii
)
Hornseed Buttercup
(
Ranunculus testiculatus
)
Hornwort Family
(
Ceratophyllaceae
)
Rigid
Hornwort
(
Ceratophyllum demersum
)
Horse Mint
(
Monarda
)
Horse Mint
(
Mentha longifolia
)
Horse Mint
(
Monarda punctata
)
Horse Nettle
(
Solanum carolinense
)
White
Horse Nettle
(
Solanum elaeagnifolium
)
Horse Radish Tree
(
Moringa pterygosperma
)
Horse-chestnut
(
Aesculus
)
Horse-chestnut
(
Aesculus hippocastanum
)
Horse-chestnut Family
(
Hippocastanaceae
)
Common
Horse-chestnut
(
Aesculus hippocastanum
)
Horse-knops
(
Centaurea nigra
)
Horse-radish
(
Armoracia lapathifolia
)
Horse-radish
(
Armoracia rusticana
)
Big
Horseshoe Lake Dewberry
(
Rubus stipulatus
)
Horse-sugar
(
Symplocos tinctoria
)
Horsetail Family
(
Equisetaceae
)
Field
Horsetail
(
Equisetum arvense
)
Great
Horsetail
(
Equisetum telmateia
)
Marsh
Horsetail
(
Equisetum palustre
)
Meadow
Horsetail
(
Equisetum pratense
)
Rough
Horsetail
(
Equisetum hyemale
)
Horsetails
(
Equisetum
)
Shore
Horsetail
(
Equisetum arvense
×
fluviatile
)
Sylvan
Horsetail
(
Equisetum sylvaticum
)
Variegated
Horsetail
(
Equisetum variegatum
)
Water
Horsetail
(
Equisetum fluviatile
)
Wood
Horsetail
(
Equisetum sylvaticum
)
Woodland
Horsetail
(
Equisetum sylvaticum
)
Horse-weed
(
Conyza canadensis
)
Horse-weed
(
Lactuca canadensis
)
Horse-weed?
(
Conyza bonariensis
)
Hortulan Plum
(
Prunus hortulana
)
Hot springs scorpion-weed
(
Phacelia thermalis
)
Hotrock Penstemon
(
Penstemon deustus
)
Hot-spring Phacelia
(
Phacelia thermalis
)
Hound's Tongue
(
Cynoglossum
)
Common
Hound's Tongue
(
Cynoglossum officinale
)
Hound's-tongue
(
Cynoglossum officinale
)
House-leek
(
Sempervivum tectorum
)
Howell's Brodiaea
(
Brodiaea howellii
)
Howell's Clover
(
Trifolium howellii
)
Howell's Gumweed
(
Grindelia howellii
)
Howell's Lousewort
(
Pedicularis howellii
)
Howell's milk-vetch
(
Astragalus howellii
)
Howell's Montia
(
Montia howellii
)
Howell's Violet
(
Viola howellii
)
Huachuca Mountain milk-vetch
(
Astragalus hypoxylus
)
Huckleberry
(
Vaccinium
)
Huckleberry
(
Vaccinium membranaceum
)
Huckleberry
(
Vaccinium myrtillus
)
Huckleberry Family
(
Ericaceae
)
Huckleberry oak
(
Quercus vacciniifolia
)
Big
Huckleberry
(
Vaccinium membranaceum
)
Cascade
Huckleberry
(
Vaccinium deliciosum
)
Dwarf
Huckleberry
(
Vaccinium caespitosum
)
Evergreen
Huckleberry
(
Vaccinium ovatum
)
Fool's
Huckleberry
(
Menziesia ferruginea
)
Globe
Huckleberry
(
Vaccinium globulare
)
Ovalleaf
Huckleberry
(
Vaccinium ovalifolium
)
Red
Huckleberry
(
Vaccinium parvifolium
)
Shot
Huckleberry
(
Vaccinium ovatum
)
Squaw
Huckleberry
(
Vaccinium stamineum
)
Tree
Huckleberry
(
Vaccinium arboreum
)
Western
Huckleberry
(
Vaccinium occidentale
)
Hudsonbay Currant
(
Ribes hudsonianum
var.
hudsonianum
)
Huisache
(
Acacia farnesiana
)
Hulver
(
Ilex montana
)
Humboldt county milk-vetch
(
Astragalus agnicidus
)
Humboldt County Mule's-ears
(
Wyethia longicaulis
)
Humboldt Milkweed
(
Asclepias cryptoceras
)
Humboldt river milk-vetch
(
Astragalus iodanthus
)
Hungarian Brome
(
Bromus inermis
)
Hungarian Grass
(
Setaria italica
)
Hungarian milk-vetch
(
Astragalus contortuplicatus
)
Hungarian Vetch
(
Vicia pannonica
)
Hungerweed
(
Ranunculus arvensis
)
Clara
Hunt's milk-vetch
(
Astragalus claranus
)
Lake
huron tansy
(
Chrysanthemum bipinnatum
)
Hutton's Dewberry
(
Rubus huttonii
)
Grape
Hyachinth
(
Muscari
)
Hyacinth Bean
(
Dolichos lablab
)
Hyacinth Brodiaea
(
Brodiaea hyacinthina
)
Small Grape
Hyacinth
(
Muscari botryoides
)
Hybdrid Goat's Beard
(
Tragopogon miscellus
)
Hybrid Dead-nettle
(
Lamium hybridum
)
Hydrangea
(
Hydrangea
)
Garden
Hydrangea
(
Hydrangea macrophylla
)
Wild
Hydrangea
(
Hydrangea arborescens
)
Hypecoum
(
Hypecoum
)
Hyssop
(
Hyssopus
)
Hyssop
(
Hyssopus officinalis
)
Hyssop Loosestrife
(
Lythrum hyssopifolia
)
Hedge
Hyssop
(
Gratiola
)
Hyssop-leaf hedge-nettle
(
Stachys hyssopifolia
)
Hyssopleaf Tickseed
(
Corispermum hyssopifolium
)
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