Plant ID forum→Please help ID this volunteer

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Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
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scvirginia
Aug 21, 2020 12:54 PM CST
This plant showed up in a pot I'm using to grow on a recently purchased Dahlia. The plant's 2.5— 3 feet tall now. The stem isn't bristly, but it is hairy, and it's flexible, not woody. Could be a vine, but no tendrils, and it's growing straight up without trying to wrap itself around the dahlia or the support rod.

The leaves look mimosa-like, but I haven't seen another example of this here. This one is new to me, and I can't find any photos online that look quite like this, presumably because I don't know what to search for- duh! And yet, I feel like I've seen photos of something very much like this a while ago.

Oh, and the leaves are not sensitive to touch, but they do fold up at night.

Thanks in advance,
Virginia

Thumb of 2020-08-21/scvirginia/aff451
Thumb of 2020-08-21/scvirginia/649634

Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Aug 21, 2020 1:12 PM CST
Here is another, perhaps clearer look at the leaves.

Thumb of 2020-08-21/scvirginia/8ea076

Name: Stefan
SE europe(balkans) (Zone 6b)
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skopjecollection
Aug 21, 2020 1:40 PM CST
Perhaps Albizia julibrissin
Mimosa Tree (Albizia julibrissin)
Its not common, but its ....findable...
[Last edited by skopjecollection - Aug 21, 2020 1:43 PM (+)]
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Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Aug 21, 2020 1:55 PM CST
Thank you so much for having a look.

Albizia julibrissin is similar, but it is very common, very invasive where I live. I have pulled up untold thousands of its babies, but this is something completely new to me. I do think it's something in the same family, though.

Thank You!
Virginia
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Aug 21, 2020 5:05 PM CST
I didn't trust myself, so went out to double-check my claim that the leaves weren't sensitive to touch. Apparently, I'm too impatient, and didn't wait long enough for a reaction. The reaction was slight, and was not immediate, but there was a slight closing of the leaves. Whoopsie. *Blush*

I'm now squinting at photos of Mimosa pigra online, and wondering if my plant could be an immature specimen, or a close relation.

Gah!



Name: stone
near Macon Georgia (USA) (Zone 8a)
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stone
Aug 24, 2020 12:58 PM CST
Likely Chamaecrista.

Partridge Pea (Chamaecrista fasciculata)

There's also a small flowered one...
Name: Rick R.
Minneapolis, MN, USA zone 4
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Leftwood
Aug 25, 2020 7:32 AM CST
leaflets are arranged oppositely with Chamaecrista. The plant in question has leaflets arranged alternately. So can't be a Chamaecrista species.
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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Aug 25, 2020 1:49 PM CST
I think you are headed in the right direction with Mimosa
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Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Aug 25, 2020 6:33 PM CST
stone, I actually planted partridge pea this year, so was able to compare them. This plant is bigger (32" tall so far) and leafier, and the leaflets on the leaves are not only opposite, but are more closely spaced together. The leaflets are quite pointed at their tips, and the leaf margins seem to be glandular?

Daisyl, I was definitely thinking something in the Mimosa family, but I've also had suggestions of Desmanthus or Sesbania.

Whatever it is, it's quite happy with the heat and rain we've had this summer, so it could be some fast-growing non-native tropical, though how it got here, I have no idea... Maybe it will flower soon; that would be helpful.

Thank You!
Virginia
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Sep 12, 2020 3:55 PM CST
This plant is over 1 meter tall now (c. 115 cm), still sharing a pot with that dahlia. If it has bloomed, the flowers are very inconspicuous. It grows straight up without vining. It doesn't seem to be anything that's native here, but I wonder if it's something that grows in Florida as a native or introduced plant there?
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Sep 13, 2020 3:51 PM CST
One last photo, then I'm done with this quest unless or until it flowers...
Thanks for having a look!
Virginia

Thumb of 2020-09-13/scvirginia/221135

Name: Porkpal
Richmond, TX
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porkpal
Sep 13, 2020 7:47 PM CST
Please do revive this post with pictures of it in bloom - when and if...
Porkpal
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
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scvirginia
Oct 22, 2020 12:12 AM CST
This plant didn't really start growing until June or July, and got to be about 5' tall before I cut the top off to see if it would bush out- I did that late in September. I saw no flowers until... October!

Here is a photo of buds from a couple of weeks ago:
Thumb of 2020-10-22/scvirginia/d179f4

Here are a coupla flower photos, then a flower photo in which you can see 2 little seed pods getting started. The flowers are very small- about the size of my pinkie's fingernail. They close up at night.

Thumb of 2020-10-22/scvirginia/45cd93
Thumb of 2020-10-22/scvirginia/972dca
Thumb of 2020-10-22/scvirginia/dc676b
[Last edited by scvirginia - Oct 23, 2020 4:14 PM (+)]
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Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier Million Pollinator Garden Challenge
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crawgarden
Oct 22, 2020 12:55 PM CST
Maybe Curly Indigo
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Oct 22, 2020 2:11 PM CST
I think mystery solved. Thumbs up

You are going to have to add some photos to the database. The NGA selection is a little skimpy.

Curly Indigo (Aeschynomene virginica)
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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Webmaster: osnnv.org
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Oct 22, 2020 4:17 PM CST
That's an excellent suggestion, but may I ask why you think it's more likely to be Aeschynomene virginica rather than the apparently more common A. americana or A. indica? According to the USDA Plants database, the last species is the only one native to SC, though that isn't necessarily dispositive even assuming the USDA maps are correct.

Thank you so much for suggesting the family, though- I think you've definitely solved that part of the mystery, and perhaps the species as well. I'm not a botanist so the species may be obviously one rather than another, and I just can't see it.

:thankyou:
Virginia
Name: Virginia
Charleston, SC (Zone 8b)
Köppen climate classification Cfa
Image
scvirginia
Feb 13, 2021 4:02 PM CST
An update... I submitted a few photos to the botanist who does plant ID's for the SC native plant society, and he did think the likely ID is Aeschynomene americana.

It isn't considered to be a SC native, but there is a state record from the 1980's that was found in Aiken Co. Mine might be a record for Charleston Co., so that's exciting!

Thanks for pointing me in the right direction—that thing was making me crazy. Blinking

Virginia
Name: Robin
Southern Michigan (Zone 6a)
Region: Michigan Seller of Garden Stuff Seed Starter Cat Lover Daylilies Million Pollinator Garden Challenge
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RobinSeeds
Feb 14, 2021 1:00 AM CST
Congrats for not giving up Virginia...those are some very nice photos you took.
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