The Marguerite Daisy (Argyranthemum frutescens) is a tender perennial with evergreen foliage and showy flower heads in shades of white, pink, or yellow. It adores the cooler weather of spring and fall, thus making it an ideal choice for planting right now. Incidentally, the Marguerite belongs to the plant subfamily Asteroideae, which in turn is part of the larger Asteraceae family. The aster is the traditional birth flower for September.
Marquerite is a high-probability typo on the Ballard list, and there are currently 36 English-language OhioLink entries for it (48 total). But tread carefully when fixing such errors in your own catalog, because it’s not at all clear when this spelling is intentional and when it is not. To compound the problem, it’s nearly impossible to distinguish a “g” from a “q” in some fonts.
(Twelve different species of the Asteraceae family, from Wikimedia Commons. The fourth one is a Marguerite.)