Cornus unalaschkensis Bunchberry
(formerly known as Cornus canadensis var. intermedia)
Valley bottoms to subalpine.
Local occurrence (where, how common)
Very common in shady, moist forested wetlands in
Moist coniferous forests; bogs; grows on stumps and logs in maritime forests; Growth most vigorous in partial shade; Moist, well drained sites preferred. It is considered a facultative wetland plant.
Plant strategy type/successional stage (stress-tolerator, competitor, weedy/colonizer, seral, late successional)
C. unalaschkensis is a clonal perennial that relies heavily on vegetative regeneration to maintain itself and spread. Responds vigorously to disturbance; C. unalaschkensis had sprouted from rhizomes in previously clearcut areas, blowdown, and scorched sites.
Montane Coniferous Wetlands;
May be collected as: (seed, layered, divisions, etc.)
Division most successful method, but can be collected by seed.
Salvage must be done while leaves are still on so you can see them; collect seeds August to October, as soon as the fruit are ripe.
Seed germination (needs dormancy breaking?)
If seeds are sown right away, you don’t need to remove the flesh. Some seeds may not germinate until the second spring, or possibly the third spring; need cold stratification.
Seed life (can be stored, short shelf-life, long shelf-life)
Propagation recommendations (plant seeds, vegetative parts, cuttings, etc.)
Seedlings grown from seed have a greater chance of survival, but division is the most successful method.
Soil or medium requirements (inoculum necessary?)
Prefers acid soils (pH 3.0 to 7.9) that are somewhat damp most of the year. Cannot survive in summer soils warmer than 65º F.
Installation form (form, potential for successful outcomes, cost)
Division most successful method; most regeneration is by rhizome. Low fruit set, low germination and survival rates, and slow early growth limit reproduction by seed.
No information found.
Care requirements after installed (water weekly, water once etc.)
Requires frequent watering until well established.
Early growth and clonal development are slow and survival is low (13
percent by the fourth year). After 3 years, seedlings averaged 1 inch
(25 mm) in height.
Leigh, M. 1999. Grow You Own Native Landscape.
Native Plant Salvage Project ; WSU Cooperative
Pojar, J. and A.
MacKinnon. 1994. Plants of the
Data compiled by Mike Cooksey,