Rhododendron neoglandulosum Harmaja

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New article for Trees and Shrubs Online.

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'Rhododendron neoglandulosum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-neoglandulosum/). Accessed 2020-12-03.

Genus

Other species in genus

Glossary

revolute
Rolled downwards at margin.
abaxial
(especially of surface of a leaf) Lower; facing away from the axis. (Cf. adaxial.)

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron neoglandulosum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-neoglandulosum/). Accessed 2020-12-03.

Erect shrub, 0.5-2.0 m; young shoots puberulent, gland-dotted. Leaves 1.5-3.5(-4) x 0.5-2 cm, broadly elliptic-oval, apex acuminate, margins flat or slightly incurved, upper surface dark green, lower surface lighter green, papillate, glabrous or more or less pubescent, scales rimless, golden, 1-2× their own diameter apart; petioles 440 mm. Flowers many, in a loose terminal umbellate corymb; calyx small, lobes rounded, margins ciliate; corolla white, rotate, c.6 mm; pedicels 1.5-4 cm, often glandular; stamens 8-12; ovary densely glandular and scaly, style sparsely glandular. Flowering May-August. Royal Horticultural Society (1997)

Distribution  United States NW

RHS Hardiness Rating H6

Conservation status Least concern (LC)

Taxonomic note (Ledum glandulosum Murr.) Royal Horticultural Society (1997)

Intermediates (that occasionally occur in cultivation) between this species and R. groenlandicum, with leaves 4-6 x 1-2cm, slightly revolute and sometimes with a few ferrugineous hairs on the lower surfaces, have been called R. x columbianum (Piper) Harmaja (Ledum columbianum Piper). Royal Horticultural Society (1997)