The Grielum humifusum flower has a variably white corolla base. The petals overlap in rotating fashion, their tips slightly rounded to flat or straight.
The visitor is preoccupied with deeper issues than corolla tips, but the flower does not require its guests to have either an aesthetic sense or botanical interests (Vlok and Schutte-Vlok, 2015; Manning, 2007; Le Roux, et al, 2005; Manning and Goldblatt, 1996; iNaturalist).