Crossword Clue:

PANICLE a loosely branched flower cluster

AnswerCrossword Clue
UMBELA flower cluster
UMBELFlower cluster, as on a carrot
UMBELFlower cluster, as on a carrot plant
UMBELA flower cluster, such as Queen Anne's lace.
RACEMEFlower cluster on a single stem, as in the honey locust
RACEMEFlower cluster whose name can also be read as a challenge