Green Poinsettia, Tooth Spurge, Toothedleaf Poinsettia
Synonyms of Euphorbia dentata (7) (Updated on 11-21-21 from Plants of the World Online): Anisophyllum dentatum (Michx.) Haw., Euphorbia aureocincta Croizat, Euphorbia dentata var. linearis Engelm. ex Boiss., Euphorbia fontanesii Steud., Euphorbia herronii Riddell, Euphorbia purpureomaculata T.J.Feng & J.X.Huang, Poinsettia dentata (Michx.) Klotzsch & Garcke
Euphorbia dentata Michx. is the accepted scientific name for this species of Euphorbia. It was named and described as such by André Michaux in Flora Boreali-Americana in 1803.
The genus, Euphorbia L., was named and described by Carl von Linnaeus in the first volume of the first edition of Species Plantarum in 1753.
As of 11-21-21 when this page was last updated, Plants of the World Online lists 2,002 species in the Euphorbia genus. It is a member of the plant family Euphorbiaceae with a total of 227 genera. Those numbers could change as updates are made on POWO. The number of species in the genus fluctuates often.
The above distribution map for Euphorbia dentata is from Plants of the World Online. Areas in green are where the species is native and purple where it has been introduced. The BONAP map is more in line with POWO…
The above distribution map for Euphorbia dentata is from the USDA Plants Database for North America (above Mexico). Areas in orange show where the species is both native and has been introduced…
The map on iNaturalist shows where members have made observations. Anyone can join and it is a great website to confirm and share your observations. The maps on iNaturalist are continually updated as members post new observations.
THERE ARE SEVERAL LINKS AT THE BOTTOM OF THE PAGE FOR FURTHER READING AND TO HELP WITH A BETTER POSITIVE ID.
You never know where an interesting wildflower is going to show up. There are 40 acres here on the farm and where did this one pop up? In the basement of the old foundation where my grandparent’s house used to be. I have never seen it anywhere else here and it always makes me wonder how it even got where it was in the first place… I didn’t climb down in the basement with it. I just zoomed in the best I could and took A LOT of photos then selected a few that came out well.
I apologize for not writing descriptions at the moment. I am busy updating the plant pages, adding photos I took over the summer and adding pages for plants I identified in 2021. This is a wintertime project… I will go back later and add descriptions as I have time. There are several links at the bottom of the page written by experts that know much more than I do. Writing descriptions of the plant, flowers, stems, leaves, etc. is a lengthy process and I get behind. 🙂
Hopefully, the Euphorbia dentata will return in 2022. If it does, I will climb down in the old foundation to get more photos. If not, I will be saying “I should have done that last year.”
I have enjoyed photographing and learning about the many wildflowers growing on the farm and other areas. My farm is in Windsor, Missouri in Pettis County (Henry County is across the street and Benton and Johnson aren’t far away). I have grown over 500 different plants and identified over 100 species of wildflowers (most have pages listed on the right side of the page). I am not an expert, botanist, or horticulturalist. I just like growing, photographing, and writing about my experience. I rely on several websites for ID and a few horticulturalists I contact if I cannot figure them out. Wildflowers can be somewhat variable from location to location, so sometimes it gets a bit confusing. If you see I have made an error, please let me know so I can correct what I have written.
I hope you found this page useful and be sure to check the links below for more information. They were written by experts and provide much more information. Some sites may not be up-to-date but they are always a work in progress. If you can, I would appreciate it if you would click on the “Like” below and leave a comment. It helps us bloggers stay motivated. You can also send an email to me at firstname.lastname@example.org. I would enjoy hearing from you especially if you notice something is a bit whacky.
FOR FURTHER READING:
PLANTS OF THE WORLD ONLINE (GENUS/SPECIES)
INTERNATIONAL PLANT NAMES INDEX (GENUS/SPECIES)
FLORA OF NORTH AMERICA (GENUS/SPECIES)
WORLD FLORA ONLINE (GENUS/SPECIES)
USDA PLANTS DATABASE
UNIVERSITY OF MISSOURI
ARKANSAS NATIVE PLANT SOCIETY
KANSAS WILDFLOWERS AND GRASSES
LADY BIRD JOHNSON WILDFLOWER CENTER
MARYLAND BIODIVERSITY PROJECT
NOTE: The data (figures, maps, accepted names, etc.) may not match on these websites. It depends on when and how they make updates and when their sources make updates. Some websites have hundreds and even many thousands of species to keep up with. Accepted scientific names change periodically and it can be hard to keep with as well. Some of the links may use a name that is a synonym on other sites. In my opinion, Plants of the World Online by Kew is the most reliable and up-to-date plant database and they make updates on a regular basis. I make updates “at least” once a year and when I write new pages or add new photos but I do get behind. We are all a work in progress. 🙂