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Rhododendron ripense
is a semi-evergreen shrub, 1-1.5m in height, inhabiting the banks of
rivers where it may be flooded when the water rises. Barks are
gray-black, and branches have long hairs facing diagonally upwards.
Leaves are of alternate phyllotaxis, all gathering at the branch
tops; spring leaves are 3-5cm in length, 0.8-1.5cm in width, in the
shape of lanceolate or oblanceolate, both ends pointed, and there
are many light brown hairs on either side of the leaves and margins.
Summer leaves are smaller, oblanceolate, thick in texture, and
survive the winter. Flowers, red-purple, appear a few on each branch
top simultaneously when the leaves develop. Corollas, 4-6cm,
funnel-shaped, and cut in five, with dark dots on the upper three
lobes. April-May. |
Wild plants in and around Shimane
島根とその周辺の野生植物