Romulea flava

Manning, John C. & Goldblatt, Peter, 2001, the Arabian Peninsula and Socotra including new species, biological notes, and a new infrageneric classification, Adansonia (3) 23 (1), pp. 59-108 : 70

8. Flowers pale or sulphur yellow, white or blue; inner bracts usually scarious .............................. 26. R. flava