Table 1. Capitulum and disc size (mean ± SD) of Chaetanthera renifolia and other coexisting congeners at the same Andean basin in central Chile.

Species	Capitulum size (mm)	Disc size (mm)
Chaetanthera renifolia
La Parva (NW, 3340) n = 50	46.3±5.14	16.8±4.03
Piedra Numerada (NE, 3460) n = 50	44.0±5.12	15.3±2.45
Chaetanthera pentacaenoides
La Parva (W, 3300) n = 50	8.5±0.70 *	2.5±0.32 *
Tres puntas (Flat, 3600) n = 50	7.9±0.63 *	2.1±0.31 *
Chaetanthera apiculata
La Parva (N, 3160) n = 50	18.9±1.76 *	5.1±0.57 *
La Parva (W, 3100) n = 50	20.3±2.30 *	5.7±0.78 *
Chaetanthera lycopodioides
La Parva (W, 3250) n = 50	14.3±1.78 *	3.2±0.57 *
La Terraza (E, 3300) n = 50	15.3±1.47 *	3.2±0.45 *

The slope aspect, elevation (m asl) and number of sampled capitula are indicated for each population.

*Indicates significant differences (P<0.001, t-test) for comparisons of C. renifolia floral traits vs. each of the species.