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Life History and Disturbance Response of Sorbus americana (American Mountain Ash)
Family: Rosaceae
Guild: understory tolerant, slow growing
Functional Lifeform: small deciduous tree
Ecological Role: This small tree is found at higher elevations on rocky sites, moist slopes and in seepage areas. Its berries are food for a number of bird species. It is usually found growing under other larger trees.
Lifespan, yrs (typical/max): tolerant
Height, m: to 9m
Canopy Tree: yes
Pollination Agent: seeds
Flowering Dates: spring
Seedfall Begins: late summer
Seed Banking: 3+yrs
Cold Stratification Required: yes
Seed Type/Dispersal Distance/Agent: berry/to 100m/birds and gravity
Season of Germination: spring
Seedling Rooting System: variable
Light: moist required
Temperature: cold required
Disturbance Response
Fire: A thin barked species that is probably sensitive to top-killing.
Weather:
Air Pollution:
Exotics: