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because it has the ability to absorb medicine used to treat diseases
water and hold it in. Ferns are including asthma.
found in many gardens and even in
some foods. Angiosperms
Gymnosperms Angiosperms, or flowering plants,
are by far the most common type
Gymnosperms have seeds, but of plants. Angiosperms all have
they are considered “naked” seeds, flowers. Although all flowers are
because they are not enclosed by different, they do have some
fruit. Instead of fruit, the seeds of things in common. The structure
gymnosperms are usually found in on the outside of the flower is
cones. The most common group of called the sepals. Sepals are
gymnosperms is the conifers, usually green, and cover the flower
which include pines, firs, spruces, until it opens. Inside the sepals
cedars, and coastal redwoods. are the petals, which all together
Conifers are an important source of are known as the corolla. These
lumber, paper, and the resin used are often bright, and designed to
by baseball players to keep their attract animals. Inside the petals
grip or by musicians to increase are the male and female parts of
the friction between the bow and the plant. These will be discussed
stringed instruments. later, when we talk about plant
reproduction. Flowers with all
these parts are called complete
flowers. Those without all of
them are called incomplete
flowers.
Figure 7 – The California Redwoods, a
species of gymnosperms, are the tallest
living vascular plants.
The gnetophytes, another group of
gymnosperms, include the plant
ephedra. This plant is used to Figure 8 – Angiosperms are plants with
flowers.
make ephedrine, an important
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