Aquilegia, C.Linnaeus, 1753

Bacchetta, Gianluigi, Brullo, Salvatore, Congiu, Angelino, Fenu, Giuseppe, Garrido, José Luis & Mattana, Efisio, 2012, A new species of Aquilegia (Ranunculaceae) from Sardinia (Italy), Phytotaxa 56 (1), pp. 59-64 : 64

Key to the species of Aquilegia from Sardinia

1. Pedicel curved at anthesis, perianth white to white-pinkish, sepals lanceolate 5 – 8 mm wide ............... A. barbaricina

- Pedicel erect at anthesis, perianth cerulean to blue-violet, sepals ovate to ovate-lanceolate 9 – 14 mm wide .............. 2

2. Stems and petioles glabrous to glandular-puberulous, spur 11 – 13 mm long .............................................. A. nuragica

- Stems and petioles pubescent, spur 14 – 20 mm long .................................................................................................... 3

3. Perianth cerulean, petal blade 8 – 12 × 5 – 9 mm, spur straight and curved at apex ................................... A. nugorensis

- Perianth blue-violet, petal blade 12 – 16 × 10 – 13 mm, spur curved and uncinated at apex .................... A. cremnophila