FIGURE 1 in Dahlia tamaulipana (Asteraceae, Coreopsideae), a new species from the Sierra Madre Oriental biogeographic province in Mexico

FIGURE 1. Dahlia tamaulipana Reyes, Islas & Art. Castro. A. Habit. B. Rhizome and tuberous roots. C. Detail of stem transversal cut and node. D. Leaf upper surface. E. Lateral view of a head and involucre. F. Front view of a head. G. Ray. H. Disc florets variations. I. Gynoecium and androecium details. J. Lateral view of a mature head. K. Dorsal and ventral view of cipsela. Illustrated by Silvia Saucedo Heredia "Canela", based on type material.