Most certain plant ID's?

[MarcoP]

In You are not allowed to view links. Register or Login to view., I collected a few plant identification lists:

• Th.Petersen
  
• ELV (Ethel Voynich), Grolier Club Notebook
  
• ELV, Beinecke Notebook
  
• The anonymous Finnish biologist You are not allowed to view links. Register or Login to view.
  
• You are not allowed to view links. Register or Login to view.'s identifications
  

The first three are from You are not allowed to view links. Register or Login to view.. Ethel's list could probably be expanded on the basis of the notebook pictures shared by Lisa, but now I just picked the ids as listed by Rene.

I have only slightly edited the lists, mostly correcting typos and folio identifiers. Some of the authors sometimes give no id for some of the plants and multiple candidates for a single plant.

The following illustrations are consistently identified by at least three of the four authors (the two ELV columns were merged together). Multiple candidates have been considered as valid for these matches (an author "agrees" even if he mentions several other possible candidates). In brackets, the different id by the dissenting author. Given that each plant has several different names, it is possible I have missed some matches. As always, it is also possible that I made other errors.

Plants mentioned by at least 3 authors:

• f1v deadly nightshade or belladonna (atropa belladonna) [All 4 mention Belladonna]
  
• f2v nymphaea [ELV: Colosia? Villarsia, Limnanthemum]
  
• f5r paris quadrifolia [ES: Wolf’s bane (Arnica montana)]
  
• f6v castor oil plant (ricinus) [ES: Sea Holly (Eryngium maritimum)]
  
• f9v viola [Finn: no id]
  
• f17v tamus (dioscorea) [Finn: Rumex acetosella?  Smilax aspera (=common smilax) or Smilax excelsa]
  
• f23r veronica [ES: Pasque flower (Pulsatilla vulgaris)]
  
• f25v plantago [ES: Woad (Isatis tinctoria)]
  
• f65v chamomile  [ES: Cornflower (Centaurea cyanus)]
  

Considering the list in the first post of this thread:

• Knapweed You are not allowed to view links. Register or Login to view.
• Water lily You are not allowed to view links. Register or Login to view.
• Ricinus (castor oil plant) You are not allowed to view links. Register or Login to view.
• Viola You are not allowed to view links. Register or Login to view.
• Cannabis You are not allowed to view links. Register or Login to view.
• Calendula / Mountain aster You are not allowed to view links. Register or Login to view.
• Malva You are not allowed to view links. Register or Login to view. (JKP)
  
• Sedum telephium You are not allowed to view links. Register or Login to view. (JKP)
  
• Prunella You are not allowed to view links. Register or Login to view.
• Oak (but the climbing plant remains unclear) You are not allowed to view links. Register or Login to view.
• Teasel f43v (right)
  
• Cuscuta (JKP) You are not allowed to view links. Register or Login to view.

The intersection between the two lists is:

• f2v nymphaea / water lily
  
• f6v ricinus / castor oil plant
  
• f9v viola
  

Maybe these three can be highlighted as the most certain ids? E.g. in bold and starred?

The other 6 ids where three of the authors agree could be added to the list of weaker (non-bold) plants together with JKP's:

• f1v deadly nightshade (belladonna)
  
• f5r paris quadrifolia
  
• f17v tamus (dioscorea)
  
• f23r veronica
  
• f25v plantago
  
• f65v chamomile