Practice question

Family Apiaceae synonym Umbelliferae produces characteristic umbel where pedicels peduncles originate from single point atop peduncle resembling umbrella spokes; typically compound umbel comprising umbellules each subtended by involucel bracteoles. Inferior ovary bicarpellate develops schizocarp splitting into two mericarps with essential oil canals vittae containing coumarins. Chemistry includes coumarins flavonoids polyacetylenes. Hollow internodes with sheathing leaf bases common, leaves highly dissected. Asteraceae capitulum, Poaceae spikelets with glumes lemmas, Brassicaceae raceme lack umbrella condensation; thus umbel type immediately suggests carrot family including parsley celery coriander dill fennel carrot cumin.