FIGURE 1 Sampled populations of Arabis alpina cover
large parts of its global range (cf. Ansell et al. , 2011) and
indicate a focus on the European Alps (A). Points represent coordinates
of published populations (data listed in Supporting Information), and
darker red colour indicates higher density of studies in given areas.
Top row photos show typical alpine habitats of A. alpina :
calcareous scree (B), moist habitats along small creeks (C), and areas
of nutrient sinks such as road verges (D). Bottom row photos illustrate
morphology of intermediately sized vegetative (E), flowering (F) and
fruiting (G) individuals. The close-up photo (H) shows adventitious
roots growing from a mature shoot at the base of vegetative rosettes.
Photos: F. Gugerli and S. Wötzel; map made with Natural Earth.
FIGURE 2 Examples of developmental traits studied usingArabis alpina (A-D): Flowering time in the glasshouse varies
between plants from the same population (A, B), adventitious rooting
(arrow) at lateral branches (C), naturally occurring variant with low
trichome density (D). Illustration of large-scale glasshouse survey
testing for naturally occurring variation in developmental traits (E).
Photos: S. Wötzel.