Mast (botany) Mast seeding is defined as the highly variable production of fruit by a population. These intermittent pulses of food resources drive ecosystem-level functions and forest dynamics. The difference between a mast seeding year and a non-mast seeding year can be thousands of acorns, hickory nuts, beech nuts, etc. Mast seeding dominantly occurs in wind-pollinated tree species, but has also been observed in grasses and Dipterocarps. Masting, in the strict sense of the term, occurs only in monocarpic (or semelparous) species, whose members reproduce only once during their lifetime, then die. Hypothesis for the evolution of mast seeding can broadly be
Beech been widespread in Europe since the 17th century. Beech has been listed as one of the 38 plants whose flowers are used to prepare Bach flower remedies. The beech most commonly grown as an ornamental tree is the European beech ("Fagus sylvatica"), widely cultivated in North America and its native Europe. Many varieties are in cultivation, notably the weeping beech "F. sylvatica" 'Pendula', several varieties of copper or purple beech, the fern-leaved beech "F. sylvatica" 'Asplenifolia', and the tricolour beech "F. sylvatica" 'roseomarginata'. The strikingly columnar Dawyck beech ("F. sylvatica" 'Dawyck') occurs in green, gold, and purple forms, named after