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A catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind-pollinated (anemophilous) but sometimes insect-pollinated (as in Salix). It contains many, usually unisexual flowers, arranged closely along a central stem that is often drooping.
catkin A spike, usually pendulous, in which the mostly small flower s are unisexual and without a conspicuous perianth, e.g. in willows, poplars, oaks, and casuarinas. The individual flowers often have scaly bract s and are generally wind-pollinated. Catkins are usually shed as a unit. caudate Having a narrow, tail-like appendage or tip, e.g. a ...
A catkin or ament is a scaly, generally drooping spike or raceme. Cymose or other complex inflorescences that are superficially similar are also generally called thus.
Two flowering male catkins from a goat willow tree (Salix caprea).Pussy willow used as Lunar New Year decoration. Easter postcard (Germany, 1902) Pussy willow is a name given to many of the smaller species of the genus Salix (willows and sallows) when their furry catkins are young in early spring.
Brachypalpus oarus, the eastern catkin, is a common species of syrphid fly first officially described by Walker in 1849. [1] Hoverflies get their names from the ability to remain nearly motionless while in flight.
Eggs are laid during the autumn in the axils of catkin buds and hatch the following spring. [4] The larvae cause an inconspicuous distortion of, usually, female catkins, thickening the rachis. [5] Catkins drop earlier than uninfected catkins and the larvae pupate in the soil. [6]
Female alder catkins after shedding their seeds Alnus serrulata male catkins. Alders are trees of the genus Alnus in the birch family Betulaceae.The genus includes about 35 species [2] of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes.
Amentotaxus is a genus of conifers (catkin-yews) comprising five species, treated in either the Cephalotaxaceae, or in the Taxaceae when that family is considered in a broad sense. The genus is endemic to subtropical Southeast Asia, from Taiwan west across southern China to Assam in the eastern Himalaya , and south to Vietnam .