Varga Plants were covered in poisonous spikes that would infect unsuspecting fleshy lifeforms and slowly turn them into Varga Plants themselves. Creepy as all hell and not entirely unlike the Krynoids in that regard.
Podcast C021 The Daleks’ Master Plan
The Doctor robs the Daleks, gains two companions, loses three, and then we even get an appearance by the monk. Epic!
Podcast C019 Mission to the Unknown
Three astronauts who aren’t The Doctor battle homicidal vegetables and Daleks while the latter plot to take over the galaxy.