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Centranthus ruber

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Common name: Valerian or Red Valerian

Symptoms induced in controlled conditions (fumigation with ozone)

Fumigation of the herb Centranthus ruber with enhanced ozone levels in Open Top Chambers (OTCs) induced leaf yellowing and faint light-brown stippling.

© 2009 Fundación CEAM © 2009 Copyright of the photos: their authors