Many native trees re-root from fallen stems and branches that touch soil or litter, some willows and aspen notably brittle wetland trees sacrifice large boughs or crown sections in inclement weather which falling many metres drive themselves into the boggy soil and just keep on going.........
I''d be more interested in the toxins ..spruce beer and bachanalian associations of ivy (g-gort?) show as I'm sure we all know, ecstatic use of 'toxins'

PS I'm no trying it first
Bri