The difference between a Common Dewberry (Rubus flagellaris) and a Southern Dewberry (Rubus trivialis) lies in their physical characteristics, specifically in the presence of prickles and bristles. Prickles and bristles are both types of thorny structures found on plants, but they differ in terms of their size and density.
Prickles are sharp, pointed structures that arise from the plant’s outer layer, known as the epidermis. They can be found on various parts of the plant, including stems, leaves, and fruits. Prickles are typically longer and more rigid than bristles, and they can cause discomfort or even injury when touched. When encountering a plant with prickles, one must be careful not to accidentally prick themselves.
On the other hand, bristles are shorter, finer, and softer thorny structures that are often found in clusters. They are usually less rigid than prickles and may have a hair-like appearance. Bristles tend to be more numerous and densely packed than prickles, giving the plant a fuzzy or bristly texture. While they can still cause slight irritation when touched, they are generally less painful than prickles.
In the case of the Southern Dewberry, it possesses both prickles and bristles, whereas the Common Dewberry only has prickles. This difference in thorny structures between the two species can be observed upon close examination of their stems, leaves, and fruits.
Having both prickles and bristles provides the Southern Dewberry with additional protection against herbivores and potential threats. The prickles act as a deterrent to larger animals by inflicting discomfort or pain, while the bristles may serve as a barrier against smaller insects or pests. This combination of thorny defenses helps the Southern Dewberry to survive in its natural habitat and avoid being consumed or damaged.
In my personal experience as a gardener, I have encountered both Common Dewberries and Southern Dewberries. When handling the plants, I have noticed the difference in thorny structures between the two species. The prickles of the Common Dewberry are more pronounced and can easily catch onto clothing or skin if not handled with care. In contrast, the Southern Dewberry’s bristles provide a softer, fuzzier texture, which is less likely to cause significant discomfort.
It is important to note that while these thorny structures serve a protective purpose for the plants, they can also pose a challenge for gardeners or individuals who come into contact with them. Therefore, it is advisable to wear protective gloves and clothing when handling or working around plants with prickles or bristles to avoid any potential injuries or irritation.
The main difference between the Common Dewberry and the Southern Dewberry lies in the presence of prickles and bristles. The Southern Dewberry possesses both prickles and bristles, while the Common Dewberry only has prickles. Prickles are longer, more rigid thorns that can cause discomfort or injury, while bristles are shorter, softer thorns that provide a fuzzy texture. This difference in thorny structures serves as a defense mechanism for the plants, protecting them from herbivores and potential threats in their environment.
