What are ornamental trees? David Beaulieu defines "ornamental trees" as specimens that don't take up much room but pack plenty of punch, visually. They are flowering landscape trees valued for their spring display and are usually the crown jewels of the yard. Below are photos of some common species of ornamental trees in State College.
Crabapple trees (left) are one of the showiest trees, offering a floral extravaganza in spring! Their flowers profusely in early spring with pink to white scented blossoms and are excellent for wildlife because of their edible dark red berries. However, the stunning flowers fade so quickly that bloom alone seldom justifies the space of such popular trees. 
..Eastern Redbud Trees (right) Thousands of small rosy-pink flowers appear in the spring before leaves appear. Sometimes referred to as the Judas tree (because it dates back to biblical times), it is a small deciduous tree that displays an abundance of purple blossoms in the spring. It is billed as one of the landscape's most graceful flowering trees. The "red buds" of redbuds are really a pinkish-purple – each with magenta pea-type flowers clinging so closely to the branches, and often the trunk, that they seem to bled through the bark.
Japanese Dogwood Trees – This has to be my favorite! In my opinion, it is the most beautiful of all flowering trees. Dogwood trees are very popular and widely planted because of their versatility and everything about the tree is pleasing: blooms for spring, an interesting branching pattern for summer, colorful foliage (purplish-red) for fall. As if that weren't enough, the bright scarlet berries persist into winter and are relished by wild birds and squirrels.
There are two species of dogwood trees. Cornus Florida bears white, star-shaped blooms, whilst "Satomi" kousa bears deep pink blossoms in spring. Each bloom cluster is ringed by four bracts.
There are two species of dogwood trees. Cornus Florida bears white, star-shaped blooms, whilst "Satomi" kousa bears deep pink blossoms in spring. Each bloom cluster is ringed by four bracts. 
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Reflection: Beware of showing off!
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If you are modest, people may not notice you at first, but they will respect you later. Prudent people have a quiet confidence. Insecure or uncertain people feel the need to prove themselves, but prudent people don't have to prove anything. They know they are capable, so they can get on with their work. A prudent man keeps his knowledge to himself, but the heart of fools blurts out folly - Proverbs 12: 23
Source: http://landscaping.about.com/mbiopage.htm
