Austrocylindropuntia subulata and Austrocylindropuntia cylindrica are two species that are often confused due to their similar appearance. However, there are some key differences between the two that can help identify them.
1. Leaf Persistence: One of the main differences between Austrocylindropuntia subulata and Austrocylindropuntia cylindrica is the persistence of their leaves. In Austrocylindropuntia subulata, the small leaves are persistent, meaning they remain on the plant throughout the year. On the other hand, Austrocylindropuntia cylindrica has deciduous leaves, which means they shed their leaves during certain seasons.
2. Leaf Quantity: Another distinguishing feature is the number of leaves. Austrocylindropuntia subulata tends to have a higher number of leaves compared to Austrocylindropuntia cylindrica. The leaves of Austrocylindropuntia subulata are more numerous, giving the plant a denser appearance.
3. Shape and Size: In terms of shape and size, both species have cylindrical stems, which is a characteristic feature of the Austrocylindropuntia genus. The stems are typically green or grayish-green in color and covered in spines. However, the specific shape and size of the stems can vary between individuals and may not be reliable for differentiation.
4. Spines: Spines are another distinguishing characteristic. Both Austrocylindropuntia subulata and Austrocylindropuntia cylindrica have spines, but the arrangement and density of spines may differ between the species. It is important to note that spines can vary within individuals as well, making it necessary to consider other features for accurate identification.
5. Flowers and Fruits: When it comes to flowering and fruiting, both species produce small, colorful flowers and edible fruits. The flowers are typically tubular in shape and can range in color from white to yellow or pink. The fruits are usually small and fleshy, often resembling berries.
In my personal experience with these species, I have found that the persistent leaves of Austrocylindropuntia subulata give it a more vibrant and lush appearance throughout the year. On the other hand, the deciduous nature of Austrocylindropuntia cylindrica can give it a more bare and skeletal look during certain seasons. This difference in leaf persistence can be a helpful clue when differentiating between the two species.
To summarize, Austrocylindropuntia subulata and Austrocylindropuntia cylindrica can be differentiated based on the persistence and quantity of their small leaves. Austrocylindropuntia subulata has persistent leaves that are more numerous, while Austrocylindropuntia cylindrica has deciduous leaves. Other factors such as stem shape, spine arrangement, and flower/fruit characteristics can also be considered for accurate identification.
