Return to the Name That Plant Forum | Post a Follow-Up

 o
Austin area plant ID

Posted by NoviceAustinGardener TX (My Page) on
Thu, Aug 28, 14 at 21:17

Hello folks, This plant randomly grew in my garden in Austin, TX. Anyone have an idea what it is?

Many thanks!


Follow-Up Postings:

 o
RE: Austin area plant ID

Something in the pea family. You might compare to Chamaecrista fasciculata, partridge pea.


 o
RE: Austin area plant ID

Thank you so much for that input! I'm thinking it might be Chamaecrista flexuosa. I'll try to get a closer look at the plant tomorrow.

Many thanks!


 o
RE: Austin area plant ID

a rather noxious weed ... the MI variation anyway ...

and that may be proved by your comment that it just popped up.. and the fact that it looks 4 feet tall in your pic ... that might be part of the definition of aggressive.. to many of us ...

ken


 o
RE: Austin area plant ID

Chamecrist flowers aren't pea shaped. Sesbania sp?


 o
RE: Austin area plant ID

Thinking that is likely Sesbania herbacea. You could also see S. drummondii in your area, but that should only have 10-20 leaflet pairs. Your plant seems to have at least 26 on some branches.


 o
RE: Austin area plant ID

  • Posted by dbarron Z6/7 (Oklahoma) (My Page) on
    Fri, Aug 29, 14 at 11:30

From the looks, it could also be a senna species...


 o
RE: Austin area plant ID

Thanks again for everyone's input. I believe there are around 36 leaf pairs. I was hoping it wasn't a weed, but it's looking more and more like it might be. Here's a closeup of the flower.


 o
RE: Austin area plant ID

Here is another shot of the plant.


 o
RE: Austin area plant ID

Now that I can see the flowers more clearly I agree it is not Chamaecrista, however Chamaecrista is in the pea family as is this plant.


 o
RE: Austin area plant ID

I think it is Sesbania herbier. It has been found both East and West of Travis county according to USDA, so my guess is that it is here also in areas that are not as Alkaline. S. drummundii is different in both flower and leaf. Both are not appropriate for an in town garden. I would definitely deadhead them if you are thinking of letting it grow. Me , I would pull it before it seeds and definitely not let it show you if it is a perennial and sends out plants from its roots. USDA identifies it as both annual and perennial. I do know that the relative . S. drumundii AKA Rattlebox forms LARGE thickets out on the gravel bars of the Pedernales River.If you start to google it it comes up with Sesbania herbacea CONTROL. Always a bad sign. LOL. Rattlebox is an unattractive plant but it serves the purpose of being the first succession of plants to establish plant matter and root mass into an unstable stream bank. I like to hover under it on the gravel bank for shade while I am sitting by the river on a 100F day.


 o
RE: Austin area plant ID

Thank you all for your amazing feedback. This plant has to go. Since it appeared quickly and has grown so rapidly, it's way too suspicious. We visited the Wildflower center in Austin yesterday so I have some better ideas on planting some native plants in that area.

Thanks again!


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Name That Plant Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here