Actually, in my and Royston's defence, I did realise that PADMA might be too few letters but ..
... but ... Andrea had ambiguously written "clue is: the flower of the lotus plant, p????a, really stuck, thinking palea but not convinced". Noting the 5-letter 'palea', I thought 'padma' might also fit.
As you can tell, I do not have access to the original crossword.