In paperweight collector terminology the commonly used term is "double swirl latticinio". And yes, there are no intentional bubbles as with reticello. The bubbles seen in the eBay weight are at junctions and edges of the lampwork - something that is not intentional but quite often seen in antique weights with lampworked flowers.
For two other St Louis Pelargonium weights see the 1999 Exhibition gallery in the website for The Paperweight Collectors Circle
. Point to the "Events" menu then click on "Past exhibitions"; Scroll down to the bottom of the page and click the "Index here" link in the section for "1999 Christie's, London". After that, select "St. Louis (Flower, Fruit and Vegetable)" under the "Antique French" section, and then click on the 3rd and 4th images in the top row of that gallery. Note that in the Blue Pelargonium in the PCC 1999 Exhibition, the centre of the flower is identical to that shown in the eBay item.
(You may also notice that the descriptions for those two weights in the PCC pages say, "on latticinio basket", rather than "double swirl latticinio", but that was just me being a bit lazy when I typed up the brief descriptions for the the full gallery of 365 images!)