In article , Kay Easton
writes
It's a compositae, so you wouldn't really expect purple flowers,
but then sea-holly is a compositae, so you never know...

Sea-holly is an umbellifer (not a composite).

Did you mean umbellifer in both contexts? I thought there were plenty of
purple composites.
--
Stewart Robert Hinsley
http://www.meden.demon.co.uk/Malvaceae/Malvaceae.html