Subgenus
Hymenanthes
Section Ponticum
Subsection Pontica
See more photos at the Smith-Mossman website
Shrub 2-4m; young shoots and petioles soon more or less glabrous. Leaves (6.5-)8.5-12(-17) x 3-5.2(-7.5cm), broadly elliptic, apex acute to minutely apiculate, upper and lower surfaces glabrous when mature.
Flowers 10-20, in a dense truss;calyx ca 1mm; corolla white to pink, with yellowish flecks, broadly campanulate, without nectar pouches, 30-40mm; ovary densely rufose-pilose, style glabrous.
-10 to 0F
May-June
Western seaboard of America.
Source: The Rhododendron Handbook 1998; Published by the Royal Horticulture Society
R. macrophyllum
Upper Little Quilcene River, Washington
by Dennis Hendrickson
R. macrophyllum
Tunnel Creek, near Mt Townsend, Washington
by Dennis Hendrickson
R. macrophyllum
by Hank Helm
R. macrophyllum
'Barto White'
by Hank Helm