Here in Snow Mexico, the Alphabet Soup for gardeners is Entirely Eponymous, beginning with E, we can go Either way...GEnus or spEciEs (and varitiEs if you are Exceptionally Eager. Here are a few E genera to start... Edgeworthia chrysantha, a member of the same family as Daphne (Thymelaeaceae), but more tender. I have grown this through one bad winter in zone 5, with minus 27 C minimum Temp, survived, but it lost its flowers, which open in February. I will show the winter hot box I grow it in if anyone is interested). Anyway here it is and it has a heavenly fragrance, I first saw this shrub at the Governor Generals mansion on Rockland Ave in Victoria a few years ago. A few others to start, many and numerous, Please, bring me your Echinaceas oryour Englemann spruce, any old Es will do. I am not fussy. It's soup for heaven sake.
Edgeworthia chrysantha Chinese paperbush
Euphorbia tirucalii (rendered in Topaz, here)
A drawf-winged Euonymus
And, finally, for now, an Epimedium pinnatum subsp. colchicum, given to me by A. Ceska, a Czech botanist and former professor of mine