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Alpine Willowherb
Epilobium anagallidifolium
Family:
Evening Primrose (Onagreaceae)
AKA:
Pimpernel Willowherb
Photo taken on:
July 4, 2007
Location:
Poverty Gulch, GV, CO
Life Zones:
Subalpine to alpine
Habitat:
Wet areas, stream sides
Grow only to 8"
in a tuft with runners and reddish stems. Leaves are bright green and
slightly toothed. Tiny (¼") pink flowers have four, notched petals. |
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Tall Annual Willowherb
Epilobium brachycarpum
Family:
Evening Primrose (Onagreaceae)
AKA:
Tall Willowherb, Autumn Willowherb
Photo taken on:
July 4, 2019
Location:
Almont, CO
Life Zones:
Plains to subalpine
Habitat:
Dry, open disturbed areas
Can grow up to 6 feet tall in an airy pattern with long,
slender, branched, green stems and narrow, folded leaves close to the
stem. The flowers are white to rose pink with darker veins and from ¼"
to 1" across. The 4 petals are so deeply notched they give the
appearance of there being 8. The seed pods are up to 1" long. |
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Fringed Willowherb
Epilobium ciliatum
Family:
Evening Primrose (Onagreaceae)
AKA:
Northern Willowherb, Sticky Willowherb,
American Willowherb
Photo taken on:
August 9, 2012
Location:
Rio Chama Recreation Area, NM
Life Zones:
Plains to montane
Habitat:
Moist areas, stream sides
Grows up to 3ft tall, branched towards the top with fleshy, finely toothed leaves. The flowers are
white to pale pink and up to ½" across. The petals are deeply notched. The
up to 4" long
seed pods and flower buds have fine hairs. |
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Glandular Willowherb
Epilobium halleanum
Family:
Evening Primrose (Onagreaceae)
AKA:
Hall's Willowweed
Photo taken on:
July 24, 2021
Location:
Roaring Judy Fish Hatchery, GV, CO
Life Zones:
Plains to montane
Habitat:
Moist meadows, stream sides
Grows 2" to 10" high with sparse, narrow leaves compared
to other Willowherbs. Lower leaves are oval-shaped, upper lance-shaped. The flowers are
white to pale pink and up to ½" across. The petals are notched. The seed pods
are up to 1 1/2" long. |
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Hornemann's Willowherb
Epilobium hornemannii
Family:
Evening Primrose (Onagreaceae)
AKA:
Alpine Willowherb
Photo taken on:
July 10, 2010
Location:
Lily Lake Trail, GV, CO
Life Zones:
Montane to subalpine
Habitat:
Meadows, stream sides
The most common Willowherb grows to 12" with larger
leaves and seed pods than Alpine Willowherb. The flowers are also
slightly larger.
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Milkflower Willowherb
Epilobium lactiflorum
Family:
Evening Primrose (Onagreaceae)
AKA:
Whiteflower Willowherb
Photo taken on:
July 4, 2007
Location:
Poverty Gulch, GV, CO
Life Zones:
Montane to subalpine
Habitat:
Moist areas, stream sides
Grows to 12" with smooth stems and long, toothed leaves. Flowers are
tiny (¼") and white. The seed
pod is up to 2" long. |