You would be surprised, the outer petals are some windscreen variant, I cant quite tell the second inner, but the inside looks like a mimifigure whip.

Ive assembled a couple of the botanical sets, the succulent and cactus ones have some very clever uses of standard pieces, I don't believe its often they introduce new ones

I have the bonsai from this range and the pink blossom petals are all frogs. It's delightful