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August, 2016
This perennial, shrubby plant has stout and branched stems growing up to 2 meters high, although it does not reach this height in wild lowbush blueberry fields. The upper branches are smooth except for scattered thorns. These thorns are stout, flattened at the base and somewhat curved. The leaves are compound and divided into 7 or 9 dark green, shiny leaflets. The leaflets are oblong (2 to 4 times as long as wide with parallel sides) to oval (often more than half as wide as long), with coarse teeth along the margin. The flowers, with pink petals and many yellow stamens in the centre, are solitary or in small clusters and are 5 to 8 cm in diameter. The plant does not flower in its first year of growth. The fruit is a bright red, many seeded, berry-like rose hip. This plant is extremely variable in all characteristics
Common wild rose is the most common of the wild rose species occurring in wild lowbush blueberry fields. It is found in old, dry fields or in damp, moist areas, often around rock piles or along the edges of fields. The species has a high acid tolerance and it is shade intolerant. It grows more vigorously and produces more fruit in full sunlight than shade. Therefore, conditions in lowbush blueberry fields can be ideal for its growth. The plant spreads vegetatively by underground root-stocks and can be found growing in clumps in blueberry fields and it spreads rapidly after disturbance. Intense burns may kill the root stocks but mowing allows the plant to regenerate from its rootstock and may result in an increase in the size of clumps. This species is not expected to reduce yields within blueberry fields,but it can make harvesting difficult
Common wild rose is a long-lived perennial shrub that reproduces by seed as well as from underground rootstocks. Spring regrowth occurs in mid to late May, with the plants producing flowers in July. Seeds are produced in late summer and are dispersed by small mammals, song birds and grouse. The seeds may require a considerable after-ripening period (2 years), but once they germinate, the vigorously growing seedlings produce a large root system. Plants originating from seed generally do not produce flowers and seeds until the second year of growth. Plants originating from the rootstocks may flower and set seed in the first year of growth or wait until
the second year.
Common Wild Rose Management
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