Answer: Climbing poison ivy and gingko trees share recognizable structures in their woody growth habits. Just like the diverse variety seen in the poison ivy seeds in the section ‘seeds and seedlings’, poison ivy plants mature into a variety of distinct recognizable forms.
Answer: Poison ivy goes through a few different stages throughout the course of its life: from seed to seedling, shoot to sprout, runner to immature vine, to mature seed producing plant. The leaves also go through a transformation as the plant matures.
Answer: Look for the very hairy stem, the slightly hairy stem, multi-vine hairy stems, or the smooth stem. This is where poison ivy identification gets a little tricky.
The answer: Because they are doing different jobs. The baby leaves of a poison ivy seedling growing in its first year. The edges of the leaves are toothed and terminal leaf has short neck. Toothing of leaves facilitates good water evaporation which leads to quick growth.
Birds and people like similar things; they like color, they like things that shine, and they are curious about finding whatever is ‘new’ in our environment. We attract them to our homes to feed them and watch them because they are beautiful and they give us so much joy.
Across North America there are two kinds of poison ivy; climbing poison ivy and non-climbing poison ivy. This simple fact is very surprising to many people, who — depending where they live — are only familiar with ‘their’ kind of poison ivy, climbing or non-climbing as may be the case.
The subject of our interest — poison ivy — uses its resin to protect its surfaces from fungal attacks. We humans get caught in the crossfire between the war between plant defense and fungal attack. As the old saying goes, “when the elephants fight, the grass suffers.”