Upper glume (outline - of uppermost if more than 2)

 

subulate                                                                linear                                                              lanceolate to ovate

      

oblate                                                                                 obovate

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith