The following two sites have descriptions of Turnera ulmifolia (scroll down for the description at the ajaytaobotanical site) that are in agreement as to the characteristics of this plant.
https://ajaytaobotanicalblog.w...
http://www.floridanativeplants...
The site below, massspectrum botanicals, is a commercial site but credible about Turnera ulmifolia being sold in Florida (and probably other places) identified as Turnera diffusa. It is credible because i discovered this first hand. The photos i posted at the beginning of this thread were sold to me in 2011(by a seller in Florida...i still have the receipt!) and identified as Turnera diffusa (aka Damiana) but i have come to realize that the seeds i received were from and yielded Turnera ulmifolia.
This site also as a photo of Turnera diffusa and a photo of Turnera ulmifolia that provide good photo comparisons of the two that is backed up on the internet at various sites both commercial and scientific.
http://massspectrumbotanicals....
Previous sites noted in this thread by
@JRsbugs indicate that Turnera ulmifolia is an umbrella of the "ulmifolia complex" and clearly describe how the characteristics of T. ulmifolia came to be variable in different parts of the world. Some variations have been named based on cellular and chromosome information but the variations do not translate (at least not yet) to different characteristics of the ulmifolia complex. Therefore, as long as the basics as
@Metrosideros describes are met, differences in appearance should be expected.
So, bravo Janet for all your research and Dave for knowing all along the identity of this plant and as far as i'm concerned i feel completely comfortable adding my photos to the database.
@plantladylin, Dave and Janet have been clear about this from the beginning and near beginning respectively, and i am now ready to post to the database, tell me what you think and if you are comfortable or still have concerns.
I feel confident that the plant is Turnera ulmifolia
