Sagittanthera, Martínez-Azorín & Crespo & Dold & Wetschnig & Pinter & Pfosser & Jaarsveld, 2013

Martínez-Azorín, Mario, Crespo, Manuel B., Dold, Anthony P., Wetschnig, Wolfgang, Pinter, Michael, Pfosser, Martin & Jaarsveld, Ernst Van, 2013, Sagittanthera (Hyacinthaceae, Urgineoideae), a new buzz pollinated genus from the Eastern Cape Province of South Africa, Phytotaxa 98 (2), pp. 43-54 : 53

Key to the species of Sagittanthera

1. Leaves 10−30 × 0.3−0.8 cm, glabrous, with entire margins; abaxial leaf surface strongly keeled; pedicels 7−8 mm; bracts 3.5−5 mm long, the lowermost with a spur of ca. 6 mm long; filaments free, short, flattened at base, 1.5 × 0.5 mm; anthers 5−6 mm long ..................................................................................................................... S. cyanelloides

− Leaves 47−50 × 0.15–0.3 cm, subterete, minutely ciliate with short translucent hairs on angles; abaxial leaf surface 12−14 grooved; pedicels 15−18 mm; bracts ca. 8 mm long, the lowermost with a spur ca. 10 mm long; filaments connate into a staminal column ca. 2.5 × 2 mm, with free apices; anthers ca. 3 mm long ............. S. mzimvubuensis