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The desert cactus
the stem
Leaves provide extra surface area for water to evaporate out of the plant. In the arid desert, plants need all the water they can get.
Thorns
The cacti have spines (not thorns) and do not have leaves. There are also some plants in Africa and Asia that are similar to cacti but have thorns instead of spines.
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The desert cactus
the stem
It's the thorns on cactus plants and roses that make them both difficult to hold. On both plants, the thorns serve to defend and protect the stem and the flower. But on the cactus, the thorn is a modified leaf. On a rose, the stem has both thorns and regular leaves.
they have poky thorns on their stem that protect them. =)
it has a stem that is green and has long thorns on it. sometimes the stem is long.
Leaves provide extra surface area for water to evaporate out of the plant. In the arid desert, plants need all the water they can get.
A rose usually has thorns on it
Thorns.
cactus thorns are made up of Leaves
Then it's not weed.
Thorns