Plant Age

[SAMA]

What is the oldest type of plant?

[opuntia]

Here is a piece of information i got from google.

A team of Tasmanian botanists claims to have found the world's oldest living plant--a vast, low-growing, one-of-a-kind shrub born more than 43,000 years ago. If their conclusions are accurate, this Lomatia tasmanica, a member of Proteaceae family otherwise known as King's holly, would be more than three times as old as the previous record holder, a 13,000-year-old box huckleberry in Pennsylvania....
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Hope taht helps you