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Abies balsamea
Acerates viridiflora ivesii (Asclepias viridiflora)
Acer negundo
Acer negundo
Acer negundo
Acer saccharinum
Acer saccharinum
Acer saccharinum
Acer saccharinum
Achillea millefolium
Actaea alba
Adenocystis
Adenocystis
Adenocystis
Adiantum pedatum
Adiantum pedatum
Adiatum pedatum
Agastache anethiodora
Agastache anethiodora (Agastache foeniculum)
Agastache anethiodora (Agastache foeniculum)
Agropyron repens (Elymus repens)
Alaria
Alaria
Alaria
Alaria
Alaria
Alaria hanging from a rocky ledge
Allium canadense
Amanita caesarea
Amanita solitaria
Amanita solitaria
Amelanchier
Amherstia nobilis
Amorpha fruticosa
Amphiroa
Amphiroa
Amphiroa in tide-pool
Anaphalis margaritacea
Andropogon floridanus
Anemone canadensis
Anemone canadensis
Anemone canadensis
Anemone candensis
Anemone candensis
Anemone virginiana
Anemone virginiana
Angelica
Anodendron paniculatum
Antennaria
Antennaria
Antennaria
Anthemis cotula
Aplectrum spicatum
Aplectrum spicatum
Aplectrum spicatum
Aquilegia canadensis
Aquilegia canadensis
Aquilegia canadensis
Aquilegia canadensis
Aquilegia canadensis
Aralia nudicaulis
Aralia nudicaulis
Aralia racemosa
Arctostaphylos uva-ursi
Argentina anserina grandis
Arisaema dracontium
Arisaema dracontium
Arisaema dracontium
Arisaema dracontium
Arisaema triphyllum
Arisaema triphyllum
Armillaria mellea
Armillaria mellea
Armillaria mellea
Artemisia
Artemisia
Artemisia dracunculus
Arthonia dispersa
Arthonia radiata
Aruncus aruncus
Asarum acuminatum (Asarum canadense)
Asarum acuminatum (Asarum canadense)
Asclepias exaltata
Asclepias incarnata
Asclepias syriaca
Asplenium filix-femina (Athyrium filix-femina)
Asplenium filix-femina (Athyrium filix-femina)
Asplenium filix-femina (Athyrium filix-femina)
Asplenium filix-femina (Athyrium filix-femina)
Asplenium filix-femina (Athyrium filix-femina)
Aster
Aster
Aster
Aster sagittifolius (Symphyotrichum cordifolium)
Aster sagittifoluis (Symphyotrichum cordifolium)
Aster salicifolius
Astragalus
Astragalus mexicanus (Astragalus crassicarpus)
Avalance course near Glacier British Columbia
Baeomyces aeruginosa