Apologies if this is mentioned elsewhere - but Red Iris flowers are there for the picking in Dalada Uplands (Charr territory).
Also theres a nice twist - you can battle a siege devourer then ride on it - similar to wurm in nightfall, but only you, not your whole party - tis fun for kicking the crap outta Charr
Red Iris Flowers
bianca periwinkle
Zorgy
Aside of making a bunch of them.....is it worth saving them or not?
chris da warrior
no dont get em no point
Gonzo
if you talk to gwen with one you get the quest Fire and Pain, which has a Rose Focus as reward (req 9 fast casting, +12 nrg, +30 health) no idea what it looks like as I haven't done the quest yet.