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Rhododendron maximum - (image 1 of 6)

Taxonomy

Family: Ericaceae

Habitat

Mesic to wet woods, forming dense colonies. 

Associates

 Distribution

Nova Scotia to southern Ontario and OH, south in mountains to GA and AL.

Morphology

Shrub or small tree to 10 m. Leaves evergreen, leathery, entire, oblong-ovate, glabrous above, scurfy-tomentose beneath. Flowers rose to white, upper petal spotted with yellow or orange adaxially; calyx lobes 2-4 mm; pedicels and ovaries stipitate-glandular.

Notes

Flowers late June to mid July

Wetland indicator: FAC

Can be distinguished from the more southern R. catawbiense by the longer calyx lobes and glandular pedicels and ovaries. Locally abundant in a few locations in the Catskills of NY where these pictures were taken.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY

USDA, NRCS. 2002. The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

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