| Hawthorns represent a very large genus in the Rose family, with over 1,000 species. Many of these species are difficult to identify, so they are often referred to as simply hawthorns, or haws, from the old English word for hedge. Other common names include white thorn, summer haw, and yellow haw. The members of the genera hybridize easily, resulting in |
![]() Twigs, leaves, and fruits |
|
much variation in features. The flowers of hawthorn often has a pungent odor, similar to the smell of decomposing flesh. This scent attracts insects, especially carrion beetles, who then pollinate the flowers. The wood of hawthorn is of little commercial value. However, the lustrous green foliage, attractive flowers, and brightly-colored fruits make hawthorn a desirable ornamental tree. Hawthorn is susceptible to damage from insects and disease and can be aggressive invaders of fields and pastures. Hawthorns may be found in coastal plains and Piedmont regions from Virginia south into Florida and west to Missouri, Tennessee, and Texas. Some species also grow in the Mississippi River valley. |
|
| Identifying Characteristics | ||
Size/Form: |
Hawthorns are small, bushy, shrub-like, deciduous trees that range in height from 15' to 30' tall, with arching branches and frequently crooked trunks. They are heavily armed with long, slender thorns. | |
Leaves: |
The leaves are simple, alternately arranged, and wedge-shaped, with serrate to slightly-lobed margins. They are frequently clustered on short spur shoots along the twigs. The leaves are dark green and sometimes lustrous. Some species have hairy leaves and twigs, while others are smooth. Sharp thorns stick out from leaf axils and along the branches. | |
Fruit: |
The fruit is a pome, or small apple, containing 2 to 5 bony nutlet-type seeds. The fruit may be yellowish-orange, scarlet red, or occasionally black when ripe. | |
Bark: |
The bark is generally thin and smooth, but may be scaly on some trees. Bark color ranges from gray to reddish-brown. Twigs are slender and have a zig-zag pattern, with sharp thorns and fleshy, reddish winter buds. | |
Habitat: |
Hawthorn can grow in a variety of soil types from dry, sandy, or rocky to well-drained, moist soil. It is often seen growing in old fields, pastures, open wooded areas, and rights-of-way. | |
|
Photos Click on thumbnails to see a larger image in a new window. Close the new window to return to this page. |
||
![]() Leaves and Thorns |
![]() Fruits |
![]() Flower |
|
|
|
|