Rosmarinus officinalis

Ferrer-Gallego, P. Pablo, Ferrer-Gallego, Raúl, Roselló, Roberto, Peris, Juan B., Guillén, Alberto, Gómez, José & Laguna, Emilio, 2014, A new subspecies of Rosmarinus officinalis (Lamiaceae) from the eastern sector of the Iberian Peninsula, Phytotaxa 172 (2), pp. 61-70 : 64

Key to the subspecies of Rosmarinus officinalis L. in Iberian Peninsula

1. Plants usually erect, with no rooting stems, occasionally shrub-like, calyx (4–) 4.2–7 mm long, corolla 8.5–13.5 mm long ........... ................................................................................................................................................................................... subsp. officinalis

- Plants always prostrate, stuck to the ground, occasionally with rooting stems; calyx up to 5 mm, corolla less than 10 mm long ..... ............................................................................................................................................................................................................2

2. Plants with sparsely rooting stems, up to 80 cm high, very leafy branches, short leaves, succulent, dark green and bright, corolla purple, lateral lobes of the lower lip flat........................................................................................................................ subsp. palaui

- Plants with clearly rooting stems, up to 20 cm high, slightly leafy branches, narrow fairly thick leaves, green and matte colors, white corolla with clear purplish spots, lateral lobes of the lower lip with margin incurved backward .................. subsp. valentinus