f22v - menorah?

[Koen G]

Crown of thorns was also the first thing I thought of, but this looks very different. 

In the VM we have:

• more or less straight line
  
• single strand
  
• broad, widely and evenly spaced spikes
  

In crown of thorns images we usually get:

• circle
  
• tight weave of separate strands
  
• fine, long, chaotically spaced spikes.
  

So it seems to be quite far off. I wouldn't discount the possibility that the plant itself is spiked, though it would be weird to have them only on part of the roots.