Hairy Mock-Orange (Philadelphus hirsutus)

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Hairy Mock-Orange (Philadelphus hirsutus)

Rare in the North Carolina mountains, where usually found at calcareous rock outcrops, Hairy Mock-Orange is a medium-sized shrub with opposite, toothed, hairy leaves and ornamental white flowers.

Hot Springs, Madison Co. NC 5/11/08.

Hairy Mock-Orange (Philadelphus hirsutus)

The slightly more common Scentless Mock-Orange (Philadelphus inodorus), which is also found in areas with mafic/calcareous rocks, has hairless twigs and leaves, larger flowers, and is a larger shrub.

Hot Springs, Madison Co. NC 5/11/08.

Hairy Mock-Orange (Philadelphus hirsutus)

The USDA PLANTS database calls this species "streambank mock orange", which is not the most appropriate name.

Hot Springs, Madison Co. NC 5/11/08.

Hairy Mock-Orange (Philadelphus hirsutus)

The leaf undersides are densely white-hairy.

Hot Springs, Madison Co. NC 5/11/08.

Hairy Mock-Orange (Philadelphus hirsutus)

New twigs are also densely hairy, unlike our other Philadelphus species.

Hot Springs, Madison Co. NC 5/11/08.

More information:
USDA PLANTS

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Revised 5/16/08 cwcook@duke.edu

All photographs and text ©2008 by Will Cook