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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.
'Melanostachys', also known as the black pussy willow, is known for its jet-black male and female catkin blooms which appear in early spring. Its male catkins also have red anthers, which slowly turn soft yellow from pollen. It has gained the Royal Horticultural Society's Award of Garden Merit. [3] [4]
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 .
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.
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.
Ciboria amentacea, commonly known as the catkin cup, is a species of ascomycete fungus in the family Sclerotiniaceae. It is widespread in Europe and North America, where it grows on catkins of willow and alder. [2] The species was first described by Giovanni Battista Balbis in 1804 as Peziza amentacea.
The leaves turn yellow in Autumn. The flowers are wind-pollinated catkins 3–6 centimeters (1 + 1 ⁄ 4 – 2 + 1 ⁄ 4 in) long, the male catkins pendulous, the female catkins erect. The fruit is unusual among birches in maturing in late spring; it is composed of numerous tiny winged seeds packed between the catkin bracts. [2] [6] River birch ...
Amentotaxus argotaenia, the catkin yew, is a species of conifer in the family Taxaceae. It is a shrub or a small tree up to 7 metres (23 ft) tall. [2] Amentotaxus argotaenia var. brevifolia has been described from southern Guizhou and listed separately by IUCN. [3] Amentotaxus formosana was previously recognised as a variant of A. argotaenia. [4]