Cornus × unalaschkensis

Cornus unalaschkensis 9282

Cornus × unalaschkensis, commonly known as the Western Cordilleran Bunchberry or Alaskan Bunchberry, is a hybrid species of plant in the Cornaceae family. It is a naturally occurring hybrid between Cornus canadensis (Canadian Bunchberry) and Cornus suecica (Swedish Bunchberry), showcasing characteristics common to both parent species. This article provides an overview of its taxonomy, description, distribution, habitat, and ecological significance.

Taxonomy

The scientific name Cornus × unalaschkensis denotes its hybrid status, indicated by the "×" in its name. The hybrid was first described in the region of Unalaska, from which its specific epithet unalaschkensis is derived. As a member of the Cornaceae family, it shares common features with other dogwoods, including the distinctive structure of its flowers and fruit.

Description

Cornus × unalaschkensis is a small, herbaceous perennial plant. It typically grows close to the ground, reaching heights of only 10-20 cm. The leaves are simple, opposite, and broadly ovate, resembling those of its parent species. In spring and early summer, it produces a characteristic inflorescence consisting of a central cluster of tiny, inconspicuous flowers surrounded by four large, white bracts that resemble petals. These bracts are a key identifying feature of the plant. The fruit is a small, red drupe, which is also edible but not widely consumed.

Distribution and Habitat

The hybrid is found in the cooler regions of the Western Cordillera, including parts of Alaska, and extends into similar habitats across the Pacific Northwest. It prefers moist, shaded areas, thriving in the understory of boreal forests, along stream banks, and in wetlands. Its presence indicates a well-preserved, moist ecological niche.

Ecological Significance

As a part of the understory flora, Cornus × unalaschkensis plays a role in the ecosystem by providing ground cover that helps to maintain soil moisture levels and prevent erosion. Its flowers are pollinated by insects, contributing to the biodiversity of its habitat. The fruits are consumed by various bird species, aiding in seed dispersal.

Conservation

While specific conservation status for Cornus × unalaschkensis has not been widely established due to its hybrid nature and relatively broad distribution, the preservation of its natural habitats is crucial for its continued survival. Conservation efforts for boreal forests and wetlands indirectly benefit this species, among others that share its habitat.

See Also

• Cornus canadensis
• Cornus suecica
• Cornaceae
• Hybrid (biology)