Plant ID forum: These "weeds" are turning into trees, and I'm going to let them!

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eturner99
Apr 29, 2017 4:54 PM CST
But what are they? Just curious, really. I'm in Sonoma County, Northern California. The tallest is probably 8 feet high or so.


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Name: Porkpal
Richmond, TX
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porkpal
Apr 29, 2017 5:39 PM CST
Resembles poison hemlock.
Porkpal
Name: Sue
Ontario, Canada (Zone 4a)
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sooby
Apr 29, 2017 6:22 PM CST
porkpal said:Resembles poison hemlock.


Yes it does.


Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
Apr 29, 2017 6:29 PM CST
It could very well be poison hemlock and there are many who would not encourage you to allow it to grow.
http://www.cal-ipc.org/ip/mana...
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
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ctcarol
Apr 29, 2017 6:40 PM CST
The purple spotting on the stalks says poison hemlock, for sure.
Name: Lin
Florida Zone 9b, 10a

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plantladylin
Apr 29, 2017 6:57 PM CST
I agree with everyone else's assesment: Poison Hemlock (Conium maculatum)


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Perthshire. SCOTLAND. UK
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Silversurfer
Apr 30, 2017 6:22 AM CST
Please read this interesting article.
It is poisonous...do you really want to let it seed around and spread?

http://www.thepoisongarden.co....

Quote from above.."Five alkaloids are present. Coniine is the most important. Conhydrine, pseudoconhydrine, methyl-coniine and ethyl-piperidine are the other four.

It is a violent emetic and convulsive, causing paralysis of the central and peripheral nervous system. Death is usually the result of respiratory failure.......etc
Being a member of the same family as carrot and fennel, there have been instances of its being mistaken for an edible plant though its mouse-like smell is, generally, a deterrent to ingestion. "
[Last edited by Silversurfer - Apr 30, 2017 6:25 AM (+)]
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eturner99
Apr 30, 2017 11:10 AM CST
Thanks all. I got local input that say it's "Water Hemlock", a just as poisonous relative? Too bad! I guess I should take them down.
Name: Karen
NM (Zone 7b)
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plantmanager
Apr 30, 2017 11:41 AM CST
Yes, it sounds very dangerous and invasive even though it is pretty.
https://www.ars.usda.gov/pacif...
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Name: Lin
Florida Zone 9b, 10a

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plantladylin
Apr 30, 2017 12:46 PM CST
Water-Hemlock (Cicuta maculata) is another found in almost all of North America.

Conium maculatum is listed as invasive in California: http://www.cal-ipc.org/ip/mana...
http://ucanr.edu/blogs/blogcor...
~ Playing in the dirt is my therapy ... and I'm in therapy a lot! ~


springfield MO area (Zone 6a)
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Frillylily
Apr 30, 2017 1:00 PM CST
It also seeds like crazy and it is hard to get rid of at that point. Wack it out now while you can!
Perthshire. SCOTLAND. UK
Region: United Kingdom Plant Identifier
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Silversurfer
Apr 30, 2017 1:58 PM CST
eturner99 said:Thanks all. I got local input that say it's "Water Hemlock".



I have chosen links from reliable USA sources.
Please double check....The leaves are very different...from your pics it sure looks like Poison hemlock.

1. Conium maculatum = Poison hemlock.

https://courses.missouristate....

http://www.missouriplants.com/...

2. Cicuta maculata = Water hemlock

https://www.uwgb.edu/biodivers...

https://extension.umass.edu/la...


eturner99
Apr 30, 2017 9:21 PM CST
They have been eradicated and I will keep a watchful eye for its offspring. So glad I posted here. Thanks all.
Name: Karen
NM (Zone 7b)
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plantmanager
Apr 30, 2017 9:36 PM CST
I'm glad you got rid of them. I imagine it will be a while before they stop popping up. Good luck!
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Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
May 1, 2017 10:20 AM CST
Before you touch the plants...
There is also the possibilty there could be Giant Hogweed mixed in which will quickly teach you to respect the toxic properties of platns.
Heracleum mantegazzianum
Giant Hogweed (Heracleum mantegazzianum)
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
May 1, 2017 11:10 AM CST
Too late, they're gone.
Porkpal
Name: Suzanne/Sue
Sebastopol, CA (Zone 9a)
Sunset Zone 15
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Calif_Sue
May 1, 2017 6:15 PM CST

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I see them all the time up here in Sonoma County, my grandkids said they went on a field trip and learned about them, not to touch them.
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Name: Karen
NM (Zone 7b)
Region: New Mexico Region: Arizona Cactus and Succulents Greenhouse Sempervivums Bromeliad
Adeniums Garden Ideas: Level 1 Tropicals Xeriscape Garden Art Plumerias
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plantmanager
May 1, 2017 7:07 PM CST
I'm glad they're teaching kids about them since they are just about everywhere.
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