The fringed willowherb is native to North America and East Asia, but was introduced to North Europe in the 1900s and spread rapidly. It prefers humid places such as in the wetlands or by the streams and ponds, but it can also survive in a variety of habitats such as roadsides and wastelands.

Marsh willowherb (Epilobium dodonaei) is a herbaceous perennial wildflower that will grow to 1.5 m tall. Commonly found growing in woodland clearings and open areas. It blooms from summer to fall with spikes of showy pink flowers. It thrives in full sun and is drought tolerant.

Fireweed (Epilobium angustifolium) is a perennial wildflower known for its distinctive, showy petals. The plant gets its common name from a unique natural phenomenon: It is one of the first plants to emerge after a wildfire. If soil conditions are right, fireweed can be an aggressive weed. If not, the seeds can remain dormant in the earth for years, waiting for the right conditions to germinate. It typically blooms from summer to fall.

Hairy willowherb (Epilobium hirsutum) is a species of weed that is difficult to eradicate. It is not known to be toxic, but the sale of this plant or its seeds has been banned in some areas. This is because its dense, aggressive growth habits can crowd out and destroy other native beneficial plants.

Square-stalked willowherb (Epilobium tetragonum) is a perennial with a distinctive square-shaped stalk and can grow from 61 to 122 cm tall. It blooms from summer to fall with pink flowers. Commonly found growing wild in gardens along roadsides and other wastelands. Prefers full sun and moist soil.

Hoary willowherb (Epilobium parviflorum) is a perennial herb found in many places across North America Europe western Asia and northern Africa. It grows in marshes swamps and moist mountain meadows and blooms between spring and fall. Hoary willowherb establishes a deep taproot but also sends exploratory roots far and wide to help it spread.

Broad-leaved willowherb is found naturally across Europe but has been introduced to the United States and other countries. It produces pale purple flowers, and grows as a weed on roadsides, walls, and neglected fields and gardens, spreading quickly thanks to its fluffy, airborne seeds.

Dwarf fireweed (Epilobium latifolium) is a plant that grows in the Arctic. It grows low but is widely distributed. It blooms with purple flowers in summer and produces elongated capsules. Greenland named it the national flower and gave it a name which means young girl in the local language.

California fuchsia (Epilobium canum) is a deciduous perennial that will grow to 46 cm tall. Bright scarlet flowers bloom summer and fall. California fuchsia grows best in full sun but needs constant moisture in summer. This plant goes dormant in winter.

Purple-Leaved Willow-Herb (Epilobium coloratum) is an herbaceous perennial plant with square or round stems. Its flowers attract bees and flower flies. The foliage is also eaten by the caterpillars of various moths. Epilobium coloratum is widely present in the eastern United States.

Tall Annual Willowherb (Epilobium brachycarpum) is also called tall fireweed. This species is indigenous to North America and is a member of the evening primrose family. Like all willowherbs, it has tufts of tiny hairs on its seeds.

Fireweed is a flowering herb with tall spikes of pink flowers. It gets its name because the seeds need to go through fire before they germinate. This flower can be used to colonize disturbed land which has been damaged by fire or even oil spills.

The marsh willowherb, also known as "codlings and cream", emits a distinctive smell similar to cold cream when its leaves are crushed. It can be found around boreal forests all over the Northern Hemisphere. The plant can reduce biodiversity in areas where it grows because it chokes off water flow.

Willowherb is a wide-ranging plant genus. The chickweed willowherb can be used as fodder for sheep, cows, and goats to eat. Its flowers also provide sugar so in the past it was used to create jellies, syrups, and ice cream flavorings.

The stem is cylindrical without ridges, is 15 to 90 cm in height, has short glandular hairs, and divides many branches at the top. Leaves are opposite except for upper leaves, often have short petiole or sessile and often have stems, leaf blade 2 to 6 cm long, 7 to 30 mm wide, oval to lanceolate, blunt tip Shaped or sharp, base wide wedge-shaped to slightly heart-shaped, with rough serrated edges. Stems and leaves can be purple. Flowers grow singly from the axilla on the top of the stem. Those with a floral pattern that sticks to the base of the flower have glandular hairs in the ovary, which later becomes fruit. There are four sepals, the lobes are 4 to 7 mm long lanceolate, and glandular hairs are densely attached to the outer surface. The flower is pale red to red, about 8 mm in diameter, has four petals, and is egg-shaped with two split tips. The fruit is a four-ridged, elongated fruit, 3 to 8 cm in length, with short glandular hairs and dehiscence from the tip. The seeds are 1.5 to 1.8 mm long elliptical, with reddish-brown crown-like long hair (seed hair) and fly by the wind.

Pimpernel willowherb (Epilobium anagallidifolium) is a wildflower that you may see in cold northern boreal habitats and alpine and subalpine mountain locations further towards the south. This plant is a useful addition to any garden because it attracts hummingbirds, butterflies and other pollinating insects with its small trumpet-shaped flowers.

Chaparral willowherb is found in open, disturbed areas producing flowers from spring through fall. The wildflowers are a food source for pollinators and wildlife eat the seeds in the winter.

Chamaenerion fleischeri has fragrant flowers with four pointed thin dark purple sepals and four bright pink ovate petals. Flowering occurs in summer.

Epilobium platystigmatosum is a flowering perennial with slender stems and narrow leaves, typically thriving in moist environments. Its distinctive broad stigma and small, clustered pink-purple flowers bloom in summer, attracting pollinators. Adapted to survive in competitive mountainous terrains, epilobium platystigmatosum exhibits a hardy nature, with its root system stabilizing soil and aiding in its resilience.

Amur willowherb is a perennial herbaceous plant notable for its slender stature and willowy stems. This species flourishes in moist environments, often gracing the banks of rivers or streambeds. Its leaves are lance-shaped with a soft, velvety texture, while the summer months bring forth a display of small, yet vibrant pink to purple flowers. These blossoms are distinctive, with four notched petals that attract various pollinators, which are crucial for the plant's reproductive cycle.