The Rollei QBM f/1,8 50mm is one of my favorite lenses.I don't know anything about flowers, and for all that I know, these could be weeds.

Shot as grayscale with minor adjustments to add contrast.
This looks much more impressive when it fills the entire screen and not in the shadow box. See the big version
Sony A7II, ISO 100, 1/50 probably wide open.