Romulea sphaerocarpa

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

16. Foliage leaf 1(-2), usually suberect, with adhering sand particles ................................ 37. R. sphaerocarpa

16’. Foliage leaves several, usually flexuouse, without adhering sand particles ................................................ 17