Hawaii's Most Invasive Horticultural Plants

   
common mullein
Verbascum thapsus

(Photo credit: Betsy Gagne)

 

(Photo credit: Michelle Clapper/USGS-BRD/UH)


Other names:woolly mullein, velvet plant
Description: Biennial herb with a basal rosette of 3-12" soft, fuzzy leaves; 1-6' spike of 1/2" yellow flowers.
Risk areas: Alpine and subalpine cinder fields, upper-elevation wet forest openings.

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