Black and white line drawing of an iris, rather lovely. Might be able to simplify it (a lot) to go on the scarf.
zentangle doodling | Zentangle, doodling & drawing / Anemones 20 July 2009 by *Artwyrd
Image from http://www.kidsplaycolor.com/wp-content/uploads/2014/03/Beautiful-California-Poppy-Coloring-Page.jpg.
Beautiful study in green by Slovakian artist Zuzana Mezencevova
begonia botanical drawing - Pesquisa Google More More
I'm going to look for one of these tiny sketch books. This one is: hellanne: sketchbook no.21 (by oanabefort)
poppy2 | Flickr | by Donovan Beeson
Poppy line drawing