In his 1999 journal article, G.G. Spomer tested several plants in the Pacific Northwest for the carnivorous syndrome, using the digestion of proteins as the diagnostic tool to determine which plants appeared to produce protease enzymes capable of breaking down potential prey. Geranium viscosissimum displayed a capability to digest and absorb the 14C-labeled algal protein placed on the sticky trichomes that the plant possesses. However, it is not known whether the digestive enzymes were produced by the plant itself or surface microbes. Additionally, some definitions of carnivory require the plant to gain some tangible benefit in capturing and digesting prey, such as increased seed yield or growth. Such an experiment has not been done with this species.
A TRIBUTE FROM THE GERANIUM HE SPOKE TO Many Happy Returns Petal. I Didn't Blow Your Cover as Being Mad as a Tree. It Was That Grass's Fault
Nov 14, 2008; IT'S Geranium here from your Highgrove garden. Or Geranium Viscosissimum, as you used to call me whenever Stephen Fry was around...