Repost Unkown Plant for Laura- Helianthus?

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Date Photo Taken: 07/20/2020
Location: Athens, GA
Posted By: Underdog

Notes:

Pale green plants 36″-48″ tall.
Hairy stem highly branched from large tap root.
Leaves alternate, serrate, ovate, stiffly haired top & bottom. Basal leaves w/ pronounced stipules that continue minutely to leaf blade. Apically stipule & leaf blade merge completely and clasp the stem. Crushed leaves smell piney, sap sticky.
Flower stems highly branched from leaf axil. Multiple yellow flowers 3/4″ to 1″ dia. w/ approx. 24 petals, yellow centers. Multipal sepals tightly clasped,

COMMENTS

  1. Underdog Flower Fanatic says:

    Here is the original post and pictures: http://www.walterreeves.com/name-that-plant/another-unknown-weed/

    July 27th, 2020 at 12:41 pm
  2. laura735 Master Identifier says:

    Yeah, it flowers!!! Appreciate your persistent Jim! Check out the species in the genus Herterotheca (camphorweed /goldenaster) and see if you have the genus at least. Maybe the Heterotheca subaxillaris? Thanks a gain Jim for the feedback. Best to you!

    http://www.bio.utexas.edu/courses/bio406d/images/pics/ast/heterotheca_subaxillaris.htm

    July 28th, 2020 at 12:07 am
  3. laura735 Master Identifier says:

    According to the included link below: “Heterotheca subaxillaris is a very weedy, morphologically variable species that has been treated as three species”.

    http://swbiodiversity.org/seinet/taxa/index.php?taxon=3825

    July 28th, 2020 at 12:11 am
  4. laura735 Master Identifier says:

    http://bonap.net/Napa/TaxonMaps/Genus/County/Heterotheca

    July 28th, 2020 at 12:14 am
  5. Underdog Flower Fanatic says:

    I do believe you are correct!
    I’ve had another group tell me it’s Camphorweed, so it’s nice to get even more verification.

    It surely *does* seem to be quite variable. I’ve photographed several plants now, and many of them look quite different than ones right next to them.

    Thanks so much for your help, and those invaluable links.

    July 28th, 2020 at 11:36 am
  6. laura735 Master Identifier says:

    You’re welcome Jim! So glad the mystery plant is no longer and we now also all know more about camphorweed aka false golden aster thanks to your posts.
    Laura

    July 28th, 2020 at 11:24 pm

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