We saw a fasciated Verbascum olympicum on a recent Huntington visit. Seriously creepy. A bit of internet investigation revealed that in at least one species of Verbascum, fasciated plants produce significantly more seed than a "normal" plant, indicating a possibly evolutionary advantage for fasciation. Plants with a fasciated parent are more likely to be fasciated themselves, therefore identifying the phenomenon as inheritable. Damage to seedlings can also induce fasciation, though less often than parentage.
Another "F"--the Front Slope. Recently a neighbor across the street invited me to take a photo from a front window.
Another "F"--Fuchsias, looking pretty in this mild, gentle May.
Another "F"--a face in Echeveria 'Pollux':
Friday frivolity. Have a great weekend!