It's difficult to definitively say which is the *broadest* tree in the world, as there are different ways to measure breadth (e.g., trunk circumference, canopy spread). However, some contenders for the title include:

1. The Thimmamma Marrimanu (India): This banyan tree in Andhra Pradesh, India, holds the Guinness World Record for the largest tree canopy in the world, covering an area of 4.72 acres. Its branches have grown so wide that they have formed a forest-like structure.

2. The Great Banyan Tree (India): This banyan tree, also in India, has an impressive canopy spread of approximately 4.5 acres. It's located in the Indian Botanical Garden, Kolkata.

3. The "Tree of Life" (Bahrain): This mesquite tree in the Bahraini desert is known for its remarkable ability to survive in extremely harsh conditions. While its canopy spread may not be as impressive as the banyans, it is considered a symbol of resilience and hope.

4. The General Sherman (USA): This giant sequoia tree in California is the largest tree by volume. While it doesn't have the widest canopy, its massive trunk circumference and overall size make it a significant contender for "broadest."

Ultimately, the "broadest" tree depends on how you define breadth. While the Thimmamma Marrimanu boasts the largest canopy, other trees like the General Sherman have impressive trunk circumferences.