Canina (subtribe)

Canina is a subtribe within the rose family (Rosaceae), specifically belonging to the tribe Roseae. It encompasses a diverse group of plants, primarily known for their characteristics of having pinnate leaves (leaves with leaflets arranged on either side of a central axis) and usually 5 petals in their flowers. While the exact circumscription can vary depending on the taxonomic system used, Canina generally includes genera traditionally considered roses, as well as related genera.

The subtribe is characterized by several morphological features, though there is some variability within the group. These features often include:

• Pinnate leaves: As mentioned above, this is a defining characteristic.
• Five petals (pentamerous flowers): Although some variations can occur, five petals are common.
• Achenes as fruits: The fruits are typically small, dry, one-seeded fruits.
• Specific chromosomal features: While not always readily observable, certain chromosomal characteristics help distinguish the subtribe.

The phylogenetic relationships within Canina and its relationship to other subtribes within Roseae are still under active investigation, with ongoing research clarifying the evolutionary history and boundaries of the group. Different classifications may group genera differently based on molecular data and morphological analysis. Further research is needed to fully resolve the complexities of this subtribe's taxonomic placement.

The economic importance of Canina is primarily through the genus ''Rosa'', with cultivated roses widely used for ornamental purposes, perfumes, and other products. Other genera within Canina may have regional economic significance, although this is often less widespread than the impact of roses.