Plants
Modifications of primary leaves, stems, and roots occur in many higher plants.
Examples:
| Primary organs | Defensive structures | Storage structures |
|---|---|---|
| Leaves | Spines | swollen leaves as in succulents |
| Stems | Thorns | tubers such as the potato, rhizomes such as ginger, and the fleshy stems of cacti. |
| Roots | - | carrot, and root tubers such as sweet potatoes |
Read more about this topic: Homology (biology)
Famous quotes containing the word plants:
“He who plants a tree
Plants a hope.”
—Lucy Larcom (1826–1893)
“The holly and the ivy
Are plants that are well known
Of all the trees that grow in the woods
The holly bears the crown.”
—Unknown. The Holly and the Ivy (l. 1–4)
“Probably if our lives were more conformed to nature, we should not need to defend ourselves against her heats and colds, but find her our constant nurse and friend, as do plants and quadrupeds.”
—Henry David Thoreau (1817–1862)