Petrea
Petrea
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Petrea L.
Engl.: Petrea.
Petrea volubilis
Petrea volubilis L.
Engl.: Purple Wreath, Queen's Wreath, Twining Petrea, Sandpaper Vine.
Sven.: propellerbuske.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.