Browse photos by Craig Althen:
Aconitum
Actaea
Actaea rubra – 6 photos
Anemone
Anemone multifida – 4 photos
Anemone parviflora – 2 photos
Anemone patens – 2 photos
Anemone piperi – 3 photos
Aquilegia
Aquilegia vulgaris – 2 photos
Caltha
Caltha leptosepala – 3 photos
Ceratocephala
Clematis
Coptis
Coptis occidentalis – 3 photos
Delphinium
Ranunculus
Ranunculus acris – 5 photos
Ranunculus gmelinii – 7 photos
Ranunculus macounii – 3 photos
Thalictrum
Trautvetteria
Trollius
Trollius albiflorus – 5 photos