umbel: A racemose inflorescence typical of the carrot family in which the pedicels arise from about the same point to form a flat or rounded flower cluster.
Now to define a couple of the non-U words…Racemose comes from the Latin word racemosus, meaning full of clusters. Inflorescence is “the mode of development and arrangement of flowers on the axis,” and a pedicel is “a slender basal part of an organism or one of its parts. Thank you Merriam-Webster!
If I Understand correctly, my lantana is an Umbel:

That was a mouthful! But I love love love lantana. And I can now use Umbel in a sentence.
I’ll take your word re the definitions!
ROG, ABC Wednesday team
Thanks for dropping by my place with a lovely comment. I really like your flower and I sure learned something new today!
I like umbelliferous blooms – so interesting to look at. Your lantana is a beautiful colour.
ABC Wednesday is making us all so smart!
Such a lovely Umbel! Love the color.