Amphibious survival
Turlough populations of Ranunculus repens must endure several months' complete submergence. Lynn and Waldren (pp. 75-84) demonstrate greater tolerance of artificial submergence in turlough populations relative to terrestrial populations. Higher levels of non-structural carbohydrates were present in roots of a field-collected turlough population compared with those of a pasture population. This may be an important factor enabling survival of transient submergence in the turlough habitat.