Divaricare

Divaricare is a botanical term used to describe a growth habit in plants characterized by spreading branches that form wide angles with the stem. This often results in a bushy, tangled, or irregular appearance. Plants exhibiting divaricare are common in certain environments, particularly those with harsh conditions such as strong winds, drought, or high grazing pressure. The divaricating habit can provide several advantages for survival. The dense, interwoven branches can offer protection from wind, reduce water loss by creating shade and trapping moisture, and deter herbivores by making the plant difficult to access and consume.

This growth form is frequently observed in plants from arid or semi-arid regions, islands, and alpine environments. Examples of plants that often display divaricare include some species of broom, rosemary, and certain native shrubs in New Zealand, where the term is widely used. The specific angle of branching, the density of the foliage, and the overall shape can vary significantly among different divaricating species. This characteristic is an important diagnostic feature for botanists in plant identification and classification. The evolutionary pressures that lead to divaricare are thought to be a significant factor in the adaptation of plants to challenging ecological niches.