When the flowers are clustered at ends of radiating pedicels as shown here the inflorescence is an umbel. All the parsleys follow this general pattern.
pedicel bract scape
Onions and some other lilies grow in this pattern.
stem bulb
Many plants, including penstemons, grow this way.
stem root crown or caudex
Prickly Poppy has this sort of root and stem system.