Plant ID forum: Smartweed (Persicaria pensylvanica)

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Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Aug 6, 2015 3:14 PM CST
I have a lot of free growing smartweed all over the place, but the flowers are darker than this and they do not have this distinctive stem.





Thank you so much for helping me ID this "fellow".

Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Aug 6, 2015 3:23 PM CST
I just found out the genus name was changed... Persicaria

And going through the database here, it just might be the Pennsylvania variety. What are your thoughts?


Name: Zuzu
Northern California (Zone 9a)
Forum moderator Plant Database Moderator Charter ATP Member Region: California Cat Lover Roses
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zuzu
Aug 6, 2015 3:46 PM CST

Moderator

The genus name hasn't been changed to Persicaria. The Polygonum genus still exists, but some of the Polygonum species, including P. pensylvanica, have been reclassified as species of Persicaria. Others have been left in the Polygonum genus or have been reclassified as species of Aconogonon, Truellum, Reynoutria, and a few other genera.

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bamira
Aug 6, 2015 5:17 PM CST
Maybe this
https://gobotany.newenglandwild.org/species/persicaria/lapat...
Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Aug 10, 2015 5:46 PM CST
Thank you for the replies. I went back out today and some of the flowers had that droopy appearance. Thank you for explaining the genus name, Zuzu. Birds get changed now and again, it's bound to happen to plants. :)

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