What is the difference between Haworthia and Haworthiopsis?

Haworthia and Haworthiopsis are both succulent plants that belong to the same family, Asphodelaceae. While they have many similarities, there are some notable differences between the two.

1. Leaf Appearance:
One of the most easily distinguishable differences is the appearance of their leaves. Haworthia plants typically have smooth leaves with a thin, translucent epidermis, similar to the leaves of aloe plants. On the other hand, Haworthiopsis species have thick, rough leaves. The leaves of Haworthiopsis often have raised tubercles or small bumps, giving them a textured appearance.

2. Leaf Arrangement:
Another difference lies in the arrangement of the leaves. Haworthia plants usually have leaves that grow in a rosette pattern, meaning they form a tight cluster with the leaves radiating out from a central point. In contrast, Haworthiopsis plants often have leaves that grow in a more spreading or cascading manner, creating a more open and elongated arrangement.

3. Flowering:
Both Haworthia and Haworthiopsis can produce small, tubular flowers on long stalks. However, there are some variations in their flowering habits. Haworthia plants tend to flower in late winter or early spring, while Haworthiopsis species generally bloom in late spring or summer. The flowers of both plants are usually small and come in shades of white or pale pink, adding a touch of beauty to the plants’ overall appearance.

4. Taxonomy and Classification:
The classification of these plants has undergone some changes over the years. Previously, all plants of this group were classified under the genus Haworthia. However, in recent years, taxonomists have revised the classification and created a new genus called Haworthiopsis to accommodate certain species. The name “zebra plant” is commonly used for two species, Haworthiopsis attenuata and Haworthiopsis fasciata, due to their distinctive striped leaf patterns.

5. Cultivation and Care:
Both Haworthia and Haworthiopsis are relatively easy to care for and make great houseplants or additions to succulent gardens. They prefer bright but indirect sunlight and can tolerate a range of temperatures. They are drought-tolerant and do well in well-draining soil. However, it is important to note that individual care requirements may vary depending on the specific species and environmental conditions.

While Haworthia and Haworthiopsis share some similarities, such as being succulent plants and belonging to the same family, they can be differentiated based on their leaf appearance, arrangement, flowering habits, taxonomy, and care requirements. These differences make them unique and appealing in their own ways, allowing plant enthusiasts to appreciate the diversity within the Asphodelaceae family.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.