What kind of tree is green and covered in sharp, pointy spikes? - Quora

Cactus spines are modified leaves. What is their purpose? - Quora

Does greener leaves indicate a healthier plant/tree? - Quora

What is the creepiest tree species in the world? - Quora

How to grow palm trees in Oklahoma - Quora

What is the most poisonous plant that many people don't know? - Quora

What kind of tree is green and covered in sharp, pointy spikes

Are there poisonous trees as well just like poisonous plants? - Quora

What kind of tree is green and covered in sharp, pointy spikes

What is the name of a plant or tree that has sharp thorns and

Do all palm trees have large holes in their trunks? - Quora

What kind of tree is green and covered in sharp, pointy spikes

What are the leaves of conifers in the form of? - Quora