Clover Stroud (author/journalist)
Clover Kelly (Roald Dahl's granddaughter)
Maybe it's a writing-in-the-genes thing?

I agree with PPs: why should it be regarded as any different to Daisy etc., re being linked (in negative way) to animals?
[Traditional 'cow' names Buttercup & Marigold are probably primed for a comeback as (human) baby names any minute now, mark my words...]