Try to make your search as simple as possible:
Felicia will find all items including that sequence of letters.
Search results for "Felicia":
"Felicia erucifolia" - Aster erucifolius
"Felicia pappei" - Felicia amoena
"Felicia paralia" - Felicia echinata blue
"Felicia pusilla" - Felicia dubia aff.