My favorites are
Jessamine and
Linnea, because they don't sound as literal as others. I also really like
Lily,
Marigold,
Bryony,
Chrysanthe, and
Rose.
*****
And last of all an Admiral came,
A terrible man with a terrible name,—
A name which you all know by sight very well;
But which no one can speak, and no one can spell.
Robert Southey, "The March to Moscow"