CADpuolens

CADpuolens, also known as *Centaurea cyanus* subsp. *puolensis*, is a rare and geographically restricted subspecies of the common cornflower (*Centaurea cyanus*). It is primarily found in the Puolanka region of eastern Finland, where it thrives in specific, often disturbed habitats such as meadows, roadsides, and open woodlands. This subspecies is notable for its distinctive blue-purple flowers and its ecological niche within its limited range.

The taxonomy of CADpuolens has been a subject of botanical study, as it is closely related to other cornflower subspecies. It was first described in the early 20th century, with its unique characteristics distinguishing it from other variants. The subspecies is considered a relic population, suggesting it may have persisted from a time when cornflowers were more widespread across northern Europe.

Conservation efforts for CADpuolens have gained attention due to its endangered status. Habitat loss, climate change, and agricultural practices have contributed to its declining populations. Finnish conservation organizations, along with local authorities, have implemented measures to protect its remaining habitats, including controlled grazing and invasive species management. Efforts also focus on raising awareness among the public and landowners about the importance of preserving this rare subspecies.

Scientifically, CADpuolens serves as a subject of interest for researchers studying plant genetics, evolution, and adaptation to specific environments. Its limited distribution makes it a valuable case study in conservation biology and the impacts of human activity on native flora. Ongoing monitoring and research aim to ensure the long-term survival of this unique subspecies within its natural habitat.