Adenium arabicum and Adenium obesum are two species of the Adenium plant family. While they share some similarities in appearance, there are notable differences between the two.
One of the main differences is in the growth habit and overall shape of the plant. Adenium arabicum tends to have a more massive and squat caudex, which is the swollen stem that stores water. The caudex of Adenium arabicum is often larger and more fat compared to Adenium obesum. On the other hand, Adenium obesum has a more slender and elongated caudex.
Another noticeable difference is in the trunk and branches of the plants. Adenium arabicum has fleshy trunks and short naked branches. These trunks and branches are often more colored, ranging from purple to dark brown. In contrast, Adenium obesum may have a more woody appearance with longer branches and a less pronounced coloration.
In terms of succulence, Adenium arabicum is considered the most succulent among the two species. It has a higher water storage capacity in its fleshy stems and leaves, which allows it to thrive in desert-like conditions. Adenium obesum, while still succulent, may have a slightly lower water storage capacity.
When it comes to overall appearance, both species have beautiful flowers that bloom in a variety of colors, including shades of pink, red, and white. The flowers of Adenium arabicum, however, may be slightly larger compared to Adenium obesum.
In terms of care, both species require similar conditions, including well-draining soil, ample sunlight, and regular watering. However, due to its more succulent nature, Adenium arabicum may be more tolerant of drought conditions and can survive with less frequent watering compared to Adenium obesum.
The main differences between Adenium arabicum and Adenium obesum lie in their growth habit, caudex shape, trunk and branch appearance, coloration, succulence, and flower size. Understanding these differences can help gardeners and plant enthusiasts choose the right Adenium species for their specific preferences and growing conditions.
