Subarctic America Plants of Subarctic AmericaExplore

• Families
• Genera
• Species 1,154

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Abies lasiocarpa (Hook.) Nutt.

Least Concern

Alpine fir

164 125 Observations

Pinaceae

Acer circinatum Pursh

Least Concern

Vine maple

366 307 Observations

Sapindaceae

Acer glabrum Torr.

Least Concern

Rocky Mountain maple

139 122 Observations

Sapindaceae

Acer macrophyllum Pursh

Least Concern

Bigleaf maple

1,071 909 Observations

Sapindaceae

Acer negundo L.

Least Concern

Boxelder

15,783 11,809 Observations

Sapindaceae

Achillea alpina L.

Chinese yarrow

18 12 Observations

Asteraceae

Achillea millefolium L.

Least Concern

Common yarrow

25,045 20,903 Observations

Asteraceae

Achillea ptarmica L.

Least Concern

Sneezewort

3,184 2,468 Observations

Asteraceae

Acorus calamus L.

Least Concern

Sweet-flag

621 474 Observations

Acoraceae

Actaea rubra (Aiton) Willd.

Red baneberry

694 583 Observations

Ranunculaceae

Adiantum pedatum L.

Northern maidenhair

549 479 Observations

Pteridaceae

Adoxa moschatellina L.

Moschatel

756 544 Observations

Viburnaceae

Agastache foeniculum (Pursh) Kuntze

Anise hyssop

1,787 1,371 Observations

Lamiaceae

Ageratina altissima (L.) R.M.King & H.Rob.

White Snakeroot

1,067 834 Observations

Asteraceae

Agoseris aurantiaca (Hook.) Greene

Mountain agoseris

46 44 Observations

Asteraceae

Agoseris glauca (Pursh) Raf.

Prairie agoseris

33 28 Observations

Asteraceae

Agropyron cristatum (L.) Gaertn.

Crested wheatgrass

108 90 Observations

Poaceae

Agrostemma githago L.

Common Corncockle

3,728 3,117 Observations

Caryophyllaceae

Agrostis canina L.

Least Concern

Velvet bent

49 31 Observations

Poaceae

Agrostis capillaris L.

Common Bent

1,531 1,172 Observations

Poaceae

Agrostis exarata Trin.

Spike redtop

11 6 Observations

Poaceae

Agrostis gigantea Roth

Redtop

133 88 Observations

Poaceae

Agrostis hyemalis (Walter) Britton, Sterns & Poggenb.

Winter bentgrass

4 4 Observations

Poaceae

Agrostis mertensii Trin.

Northern bent

10 9 Observations

Poaceae

Agrostis microphylla Steud.

Small-leaf bent

2 2 Observations

Poaceae

Agrostis scabra Willd.

Tickle grass

2 2 Observations

Poaceae

Agrostis stolonifera L.

Least Concern

Spreading bent

358 235 Observations

Poaceae

Agrostis vinealis Schreb.

Brown bent

16 13 Observations

Poaceae

Alchemilla alpina L.

Alpine lady's-mantle

1,553 1,160 Observations

Rosaceae

Alchemilla filicaulis Buser

Hairy lady's-mantle

50 40 Observations

Rosaceae

Alchemilla glabra Neygenf.

Smooth lady's-mantle

163 115 Observations

Rosaceae

Alisma plantago-aquatica L.

Least Concern

Water-plantain

1,695 1,230 Observations

Alismataceae

Alisma triviale Pursh

Least Concern

Northern water-plantain

35 31 Observations

Alismataceae

Allium fistulosum L.

Welsh onion

622 536 Observations

Amaryllidaceae

Allium schoenoprasum L.

Least Concern

Chives

4,213 3,535 Observations

Amaryllidaceae

Allium vineale L.

Wild garlic

3,204 2,693 Observations

Amaryllidaceae

Alnus alnobetula (Ehrh.) K.Koch

Least Concern

Green Alder

1,549 1,088 Observations

Betulaceae

Alnus incana (L.) Moench

Least Concern

Grey alder

2,625 1,894 Observations

Betulaceae

Alnus rubra Bong.

Least Concern

Red alder

46 28 Observations

Betulaceae

Alopecurus aequalis Sobol.

Least Concern

Orange foxtail

117 73 Observations

Poaceae

Alopecurus arundinaceus Poir.

Least Concern

Creeping foxtail

35 28 Observations

Poaceae

Alopecurus geniculatus L.

Marsh foxtail

107 68 Observations

Poaceae

Alopecurus magellanicus Lam.

Least Concern

Alpine foxtail

12 12 Observations

Poaceae

Alopecurus pratensis L.

Meadow foxtail

2,570 1,963 Observations

Poaceae

Alyssum alyssoides (L.) L.

Small alison

975 621 Observations

Brassicaceae

Amaranthus albus L.

Prostrate pigweed

490 368 Observations

Amaranthaceae

Amaranthus blitoides S.Watson

Mat Amaranth

496 341 Observations

Amaranthaceae

Amaranthus retroflexus L.

Reflexed amaranth

8,264 6,158 Observations

Amaranthaceae

Ambrosia artemisiifolia L.

Annual ragweed

4,724 3,731 Observations

Asteraceae

Ambrosia chamissonis Greene

Silver bur ragweed

133 124 Observations

Asteraceae

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