vegetative

Concise Oxford English Dictionary © 2008 Oxford University Press:
vegetative /ˈvɛdʒɪtətɪv, -teɪtɪv/

▶adjective

• 1 Biology relating to or denoting reproduction or propagation achieved by asexual means, either naturally or artificially.

• 2 relating to vegetation or the growth of plants.

• 3 Medicine alive but comatose and without apparent brain activity or responsiveness.

– derivatives
vegetatively adverb,
vegetativeness noun.