MorphologyRead full entry
DescriptionMore info for the term: shrub
Dwarf Oregon-grape is a low-growing rhizomatous evergreen shrub which
typically reaches 4 to 24 inches in height [28,69]. On exceptional
sites, plants may grow to 7 feet (2.1 m) . The simple stems are
ascending to erect and generally occur in loose colonies of several
stems [69,46,71]. Compound leaves are borne in terminal tufts [66,69].
Coarsely serrate to spinose, ovate to lance-ovate or acute leaflets
occur in groups of 7 to 21 [46,69,95]. Leaflets are dark green, thick,
and leathery [71,95]. Yellow flowers are borne in erect clusters or
racemes up to 8 inches (21 cm) in length [66,69,71]. The fruit is a
large, dark blue, globose berry with grayish or whitish bloom
[28,69,71,95]. Berries are 0.3 to 0.4 inch (8-10 mm) in diameter, occur
in clusters , and contain a number of black seeds .