interesting plant... but.. are you sure this is a true nodosa? there is something on those flower screaming "I'm not nodosa"
the petals are not right, and the shape of the labellum is also weird.. somehow, it reminds me of B. subulifolia (which has been considered by many as a variety of nodosa).. and also the missing strong fragrance is not right... could it be a hybrid between both species? maybe from someone who considered subulifolia as nodosa and therefore the name?
the position of the petals also reminds me of B. cebolleta...