Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Symphytum

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image of plant
Show caption*© ZWG, some rights reserved (CC BY), uploaded by ZWG
1 Upper leaves not decurrent, or decurrent < 1 cm below the leaf attachment; pubescence of stem in part of strong, recurved prickles (resembling miniature rose thorns)
image of plant
Show caption*© Andrew Garn, some rights reserved (CC BY), uploaded by Andrew Garn
image of plant
Show caption*© Andrzej Chruślak, some rights reserved (CC BY), uploaded by Andrzej Chruślak
1 Upper leaves decurrent on the stem; pubescence of the stem not of prickles