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Epilobium tetragonum

From Wikipedia, the free encyclopedia

Epilobium tetragonum
Flower
Habit
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Onagraceae
Genus: Epilobium
Species:
E. tetragonum
Binomial name
Epilobium tetragonum

Epilobium tetragonum, commonly known as the square stalked willow herb, is a species of flowering plant in the willowherb family Onagraceae.

The erect perennial herb typically grows to a height of 0.1 to 1.3 metres (0.3 to 4.3 ft) and can have several stems. It blooms between January and November[clarification needed] and produces pink-purple flowers.

The species has become naturalised in the Perth and Peel regions of Western Australia.[1]

Description

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Epilobium tetragonum is characterized by its distinctive square-shaped stem, with leaves evenly spaced in a tetragonal arrangement around the stem, giving the plant a square-like appearance. The leaves are hairless and solid green and have a unique shimmer in direct sunlight.[2]

References

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  1. ^ "Epilobium tetragonum". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. ^ "WIllow herb". herbiguide.com. Retrieved 16 April 2023.