Wavy margins

I've run out of time tonight, but here are two close-ups of Hoffman's Bristly Jewelflower (Streptanthus glandulosus ssp. hoffmanii) photographed on serpentine outcrops at The Cedars yesterday:

 

 

P.S.  I was wondering about the name "Streptanthus."  According to The Jepson Manual it means "twisted flower"— after the wavy margins of the petals (visible in these photos).