Angiosperm Plants Examples
Angiosperm plants are the most extensive group of the Plant Kingdom (Plantae) . They have managed to colonize practically the entire globe, and all thanks to their adaptability. They are the most cultivated in the gardens, and that is … who does not like flowers?
Let´s see more about these fantastic plants: their origin, what makes them so special, and more.
Angiosperms are plants that have flowers, and fruits with seeds , which is what differentiates them from gymnosperms. They are found in the vast majority of plant communities: trees, cacti, succulents, herbaceous plants, shrubs, … In all but ferns, conifers, cycads and mosses. They have managed to adapt to live in the warmer deserts, as well as in the high peaks; in sandy soils and limestone.
The origin of these curious plants is found in the tropics, during the Lower Cretaceous some 145 million years ago . Little by little they spread to the more temperate regions, to the point that it is known that they were replacing the gymnosperms.
Although it is not known which plants they come from or how they evolved, thanks to the remains that have been found we can get an idea of how they started:
- Pollen grains : first they were very similar to those of the gymnosperms (monocolpados), but later appeared more evolved grains (tricolpados, tricolporados and triporados).
- Leaves : the first ones were whole, similar to those of monocotyledonous plants (like herbs).
By having smaller flowers, with more vivid colors, and by protecting the seed until it finishes ripening, it makes it easier for future generations to germinate and get ahead.
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