Polygonum

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Polygonum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/polygonum/). Accessed 2019-12-10.

Family

  • Polygonaceae

Glossary

perianth
Calyx and corolla. Term used especially when petals and sepals are not easily distinguished from each other.
style
Generally an elongated structure arising from the ovary bearing the stigma at its tip.
alternate
Attached singly along the axis not in pairs or whorls.
nutlet
Small nut. Term may also be applied to an achene or part of a schizocarp.
perianth
Calyx and corolla. Term used especially when petals and sepals are not easily distinguished from each other.
whorl
Arrangement of three or more organs (leaves flowers) around a central axis. whorled Arranged in a whorl.

References

There are currently no active references in this article.

Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Polygonum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/polygonum/). Accessed 2019-12-10.

A widely distributed but mainly temperate genus, with about 300 species of annuals and perennials, the latter mainly herbaceous but a few with persistent, more or less woody stems. Leaves alternate, with sheathing stipules. Flowers usually in spikes, racemes or panicles. Perianth segments five (sometimes four or six), in two whorls, those of the outer whorl winged on the back in some species. Stamens five, sometimes more or fewer. Style with two or three stigmas. Fruit a three-sided or lens-shaped nutlet, enclosed by the persistent perianth.

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