| BEANSTALK | Proof, to the botanist, that vegetables communicate with each other (9) |
| OBJECTLANGUAGE | Design network with intricate gauge that computers use to communicate with each other (6,8) |
| BEGONIAS | Flowering plants, named after a French colonial official and botanist, that prefer growing in shade (8) |
| YARDLONGBEAN | By and large, no prep's needed for that vegetable |
| KOHLRABI | Broil hake after removing tail - cook that vegetable |
| NOTON | ___ speaking terms (unwilling to communicate with each other): 2 wds. |
| PLACEBO | Plant, found by leading pair of botanists, that has an unexplained therapeutic effect |
| ETYMOLOGY | What the two words in each starred answer have in common with each other |
| MESSMATES | They get fed up with each other! (9) |
| EIGHTIETH | People rowing with each other, one getting the wrong anniversary perhaps |
| GETTINGON | The boarders are friendly with each other (7,2) |
| TEARAPART | To damage or destroy a group by making people fight or argue with each other (4,5) |
| STETS | Written instructions on a proof to ignore the corrections; to let stand the original form |
| LINNAEUS | Latinised name of the botanist who formalised binomial nomenclature and was the first to remove bats from the birds and classify them under mammals (8) |
| CARET | Mark used in writing in correcting proof to show where something is to be added |
| ROOFTOP | Proof to be got from highest point in the house (7) |
| GERARD | Originally a barber-surgeon, the botanist and superintendent of the gardens of William Cecil, Lord Burghley and compiler of the tome Herball (6) |
| STOKESIA | Member of the daisy family, named after the botanist Jonathan Stokes (8) |
| SACHSIA | Plant in the sunflower family, named in honour of the botanist Julius von Sachs (7) |
| EVIDENCE | Proof / to attest; to illustrate |
