Failure to notice your relatively "new" plants in flower is not a good sign. Possibly even symptomic of having too many plants and almost sign of negligence. A regular visitor to my collection spotted this xeric bromeliad in flower. Lime green is an unusual flower colour. I'm not completely sure if it is D. brevifolia v. brevifolia. I received it as that. It differs from its twin D. brevifolia v. chlorantha being bigger. Than again, what i also received a D. lorentziana. It is could be case of mixing up the labels. D. lorentziana is a much bigger plant with close rosette 5-10 cm in diamater while D. brevifolia v. brevifolia is smaller with open rosette 5 cm across. Cultivation of this species is easy; grow in rocky open mix and full sun.