great willow herb

noun

either of two tall, large-flowered willow herbs, Epilobium angustifolium or E. hirsutum.

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Example Sentences

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Along its further side the riparian plants grew thickly, so that it was separated from the river by a kind of hedge of purple loosestrife, great willow herb, fleabane, figwort and hemp agrimony, here and there already in bloom.