Common Yarrow, Bloodwort, Northern Yarrow, Soldiers Woundwort: Achillea millefolium (Synonyms: Achillea alpicola, Achillea arenicola, Achillea borealis ssp. arenicola, Achillea borealis ssp. californica, Achillea californica, Achillea gigantea, Achillea lanulosa, Achillea lanulosa ssp. alpicola, Achillea laxiflora, Achillea megacephala, Achillea millefolium var. alpicola, Achillea millefolium var. arenicola, Achillea millefolium var. asplenifolia, Achillea millefolium ssp. borealis, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. gigantea, Achillea millefolium ssp. lanulosa, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. maritima, Achillea millefolium var. megacephala, Achillea millefolium var. nigrescens, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica, Achillea millefolium var. puberula, Achillea nigrescens, Achillea occidentalis, Achillea pacifica, Achillea puberula, Achillea rosea, Achillea subalpina)
Aromatic Pussytoes, Scented Pussytoes: Antennaria aromatica
Alpine Pussytoes, Fries's Pussytoes: Antennaria friesiana ssp. ? (Synonym: Antennaria alpina var. friesiana)
Cat's Paw: Antennaria monocephala (subspecies monocephala & philonipha)
Handsome Pussytoes, Showy Pussytoes, Tall Pussytoes: Antennaria pulcherrima ssp. pulcherrima (Synonyms: Antennaria carpatica var. pulcherrima, Antennaria pulcherrima var. angustisquama, Antennaria pulcherrima var. sordida)
Pulvinate Pussytoes: Antennaria rosea ssp. pulvinata (Synonyms: Antennaria albescens, Antennaria fusca, Antennaria gaspensis, howellii ssp. gaspensis, Antennaria isolepis, Antennaria maculata, Antennaria manicouagana, Antennaria media ssp. fusca, Antennaria neglecta var. gaspensis, Antennaria neodioica var. gaspensis, Antennaria peasei, Antennaria pulvinata, Antennaria pulvinata ssp. albescens, Antennaria sansonii, Antennaria straminea)
Brown-bracted Pussytoes, Cat's Paw, Dark Pussytoes, Umber Pussytoes: Antennaria umbrinella (Synonyms: Antennaria aizoides, Antennaria flavescens, Antennaria reflexa)
Alpine Arnica, Narrowleaf Arnica: Arnica angustifolia ssp. angustifolia (Synonyms: Arnica alpina ssp. attenuata, Arnica alpina var. attenuata, Arnica alpina ssp. angustifolia, Arnica alpina var. angustifolia, Arnica alpina ssp. iljinii, Arnica alpina var. linearis, Arnica alpina var. plantaginea, Arnica alpina ssp. somborgeri, Arnica alpina var. ungavensis, Arnica alpina var. vestita, Arnica attenuata, Arnica plantaginea, Arnica sornborgeri, Arnica terrae-novae)
Frigid Arnica, Snow Arnica: Arnica griscomii ssp. frigida (Synonyms: Arnica frigida, Arnica louiseana ssp. frigida, Arnica louiseana var. frigida, Arnica louiseana var. mendenhallii, Arnica louiseana var. pilosa)
Lessing's Arnica, Nodding Arnica: Arnica lessengii: (Synonyms: Arnica angustifolia var. lessingii, Arnica lessingii ssp. norbergii)
Alaska Wormwood, Alaska Sagebrush, Siberian Wormwood: Artemisia alaskana (Synonym: Artemisia tyrrellii)
Alpine Sagewort, Arctic Wormwood, Boreal Sagebrush: Artemisia norvegica ssp. saxatilis (Synonyms: Artemisia arctica, Artemisia arctica ssp. arctica, Artemisia arctica ssp. saxicola, Artemisia norvegica var. piceetorum, Artemisia norvegica var. saxatilis)
Forked Wormwood: Artemisia furcata (Synonyms: Artemisia furcata var. heterophylla, Artemisia hyperborea, Artemisia tacomensis, Artemisia trifurcata)
Purple Wormwood: Artemisia globularia ssp. globularia (Synonyms: Ajania globularia, Artemisia norvegica ssp. globularia)
Tilesius' Wormwood, Tall Wormwood: Artemisia tilesii (Synonyms: Artemisia hookeriana, Artemisia hultenii, Artemisia tilesii var. aleutica, Artemisia tilesii var. elatior, Artemisia tilesii ssp. gormanii, Artemisia tilesii ssp. hultenii, Artemisia tilesii var. unalaschcensis, Artemisia unalaskensis var. aleutica, Artemisia vulgaris ssp. tilesii)
Arctic Aster, Siberican Aster: Eurybia sibirica (Synonyms: Aster beringensis, Aster giganteus, Aster montanus, Aster montanus var. giganteus, Aster richardsonii, Aster richardsonii var. giganteus, Aster sibiricus, Aster sibiricus ssp. richardsonii, Aster sibiricus var. giganteus, Eurybia sibirica var. gigantea)
Elegant Hawksbeard, Elegant Hawk's-beard: Crepis elegans (Synonym: Askellia elegans)
Alpine Hawksbeard, Dwarf Alpine Hawksbeard: Crepis nana: (Synonyms: Crepis nana ssp. nana, Crepis nana ssp. typica, Crepis nana var. lyratifolia, Crepis nana ssp. ramosa)
Bitter Daisy, Bitter Fleabane, Fleabane Daisy: Erigeron acris (Synonym: Trimorpha acris)
Angular Fleabane, Swamp Boreal-daisy, Swamp Fleabane, Tall White Fleabane: Erigeron elatus (Synonyms: Erigeron alpinus var. elatus, Erigeron acris var. arcuans, Erigeron acris var. elatus, Erigeron elatus var. oligocephalus, Trimorpha elata)
Largeflower Fleabane, Rocky Mountain Alpine Fleabane: Erigeron grandiflorus (Synonym: Erigeron simplex)
Arctic Alpine Fleabane, Lowly Fleabane, Mountain Fleabane: Erigeron humilis (Synonyms: Erigeron unalaschkensis, Erigeron uniflorus var. unalaschkensis)
Tundra Fleabane: Erigeron hyperboreus (Synonym: Erigeron alaskanus)
Low-Meadow Fleabane, Shortray Boreal-daisy, Shortray Fleabane, Spearleaf Daisy: Erigeron lonchophyllus (Synonyms: Erigeron acris ssp. racemosus, Erigeron lonchophyllus var. laurentianus, Erigeron minor, Erigeron racemosus, Trimorpha lonchophylla)
Arctic Fleabane, Purple Fleabane: Erigeron purpuratus
Oneflower Fleabane, One-flower Fleabane: Erigeron uniflorus ssp. eriocephalus
Dwarf Arctic Ragwort, Dwarf Arctic Butterweed: Packera cymbalaria (Synonyms: Cineraria lyrata, Packera resedifolia, Senecio cymbalaria, Senecio fernaldii, Senecio resedifolius)
Elegant Groundsel: Packera indecora (Synonyms: Senecio burkei, Senecio idahoensis, Senecio indecorus, Senecio pauciflorus ssp. fallax)
Alpine Groundsel, Rayless Alpine Butterweed: Packera pauciflora (Synonyms: Senecio aureus var. discoideus, Senecio discoideus, Senecio lembertii, Senecio pauciflorus) - Flower heads usually discoid (or with a few short rays) and bracts purple-tipped.
Balsam Groundsel: Packera paupercula (Synonym: Senecio balsamitae, Senecio balsamitae var. firmifolius, Senecio balsamitae var. thomsoniensis, Senecio crawfordii, Senecio flavovirens, Senecio gaspensis, Senecio multnomensis, Senecio pauperculus, Senecio robbinsii var. subtomentosus, Senecio tweedyi)
Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)
Common Saussurea, Narrowleaf Saw-wort, Narrow-leaved Saussurea, Narrow-leaved Saw-wort: Saussurea angustifolia var. angustifolia
Sticky Saussurea, Sticky Saw-wort: Saussurea angustifolia var. viscida (Synonym: Saussurea viscida)
Small Black-tipped Ragwort, Black-tipped Groundsel: Senecio lugens (Synonyms: Senecio glaucescens, Senecio imbricatus, Senecio integerrimus var. lugens)
Northern Goldenrod, Rocky Mountain Goldenrod: Solidago multiradiata (Synonyms: Aster multiradiatus, Solidago algida, Solidago cusickii, Solidago dilatata, Solidago heterophylla, Solidago multiradiata var. arctica, Solidago multiradiata var. scopulorum, Solidago rubra, Solidago scopulorum, Solidago virgaurea var. arctica, Solidago virgaurea var. multiradiata)
Fleshy Dandelion, Pink Dandelion: Taraxacum carneocoloratum
Alaska Dandelion, Kamchatka Dendelion, Northern Dandelion: Taraxacum alaskanum (Synonyms: Taraxacum kamtschaticum, Taraxacum pseudokamtscahticum)
Horned Dandelion, Pissenlit tubercule: Taraxacum ceratophorum (Synonyms: Leontodon ceratophorus, Taraxacum ambigens var. fultius, Taraxacum angulatum, Taraxacum arctogenum, Taraxacum brachyceras, Taraxacum carthamopsis, Taraxacum coverum, Taraxacum dumetorum, Taraxacum eriophorum, Taraxacum eurylepium, Taraxacum groenlandicum, Taraxacum. hyperboreum, Taraxacum integratiforme, Taraxacum integratum, Taraxacum lacerum, Taraxacum lateritium, Taraxacum longii, Taraxacum mackenziense, Taraxacum malteanum, Taraxacum maurolepium, Taraxacum microcerum, Taraxacum ovinum, Taraxacum pellianum, Taraxacum pseudonorvegicum, Taraxacum umbriniforme, Taraxacum umbrinum)
Arctic Butterweed, Purple-haired Groundsel: Tephroseris frigida (Synonyms: Cineraria frigida, Senecio atropurpureus ssp. frigidus, Senecio atropurpureus ssp. ulmeri, Senecio frigidus, Tephroseris atropurpurea ssp. fridida)
Arctic Senecio, Kjellman's Groundsel: Tephroseris kjellmanii (Synonyms: Senecio atropurpureus ssp. tomentosus, Senecio atropurpureus var. dentatus, Senecio frigidus var. tomentosus, Senecio kjellmanii, Senecio tichomirovii, Tephroseris atropurpurea ssp. tomentosa) - Stout stems are generally dark purple when young. Involucral bracts with numerous purplish or brownish hairs. Flower heads abruptly contracted to peduncles. Heads discoid to ringed with 13 ray flowers.
Twice-hairy Butterweed: Tephroseris lindstroemii (Synonyms: Senecio bivestitus, Senecio fuscatus, Senecio integrifolius var. lindstroemii, Senecio lindstroemii, Senecio tundricola ssp. lindstroemii, Tephroseris tundricola ssp. lindstroemii)
Clustered Marsh Ragwort, Marsh Fleabane, Mastodon Flower: Tephroseris palustris (Synonyms: Othonna palustris, Senecio arcticus, Senecio congestus, Senecio congestus var. laceratus, Senecio congestus var. palustris, Senecio congestus var. tonsus, Senecio tubicaulis, Tephroseris palustris ssp. congesta)
Yukon Groundsel: Tephroseris yukonensis (Synonyms: Senecio alaskanus, Senecio yukonensis)