Called “Smartweed” in GBIF
Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae. Plants of the genus are known commonly as knotweeds or smartweeds. It has a cosmopolitan distribution, with species occurring nearly worldwide. The genus was segregated from Polygonum.
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Persicaria lapathifolia
2 articles
Agnes Trekker · Tai Po, Hong Kong · CC0
Next time you spot a simple, open flower buzzing with flies or small insects, know that its shape...
If you're restoring a rain garden or bioswale near a road or old industrial site, common reed and...
Contaminated soil near old mines can leach manganese into waterways and vegetable gardens downhil...
Every article on Plant News that mentions a member of this genus, newest first.
A tube-less, bowl-shaped flower pollinated by flies still manages to sort pollen onto different body parts of its pollinators, ensuring it mostly reaches the right type of flower rather than its own. This solves a long-standing puzzle about how plants without floral tubes can pull off Darwin's cross-pollination trick.
If you're restoring a rain garden or bioswale near a road or old industrial site, common reed and purple loosestrife relatives...
Contaminated soil near old mines can leach manganese into waterways and vegetable gardens downhill — this discovery shows that...