Fig. 4 in Hiding in plain sight: Integrative analyses uncover a cryptic Salvia species in Europe

Fig. 4. PCA biplot of Salvia L. samples based on six quantitative floral characters, where the arrows represent loadings. Blue circles, S. austriaca Jacq. (N = 16); red triangles, Salvia FDPD (N = 26); ch, corolla height; cl, corolla length; cal, calyx length; a, absolute length of the abaxial lever arm; b, distance between joint and pollen-sacs; c, absolute length of the adaxial lever arm.