A male catkin on a willow

a male flowering catkin on a willow

Catkins, or aments, are slim, cylindrical flower clusters, wind-pollinated (anemophilous) and without petals, that can be found in many plant families, including Betulaceae, Fagaceae, Moraceae, and Salicaceae. They contain unisexual flowers. Often one plant has only male catkins, while another has female, but it is also possible for a plant to contain both male and female catkins. Oak, birch, hazel, willow, alder, chestnut, sweetfern, poplar,mulberry are catkin-bearing. an ament inflorescence created by me. ... an ament inflorescence created by me. ... Species About 350, including: Salix acutifolia - Violet Willow Salix alaxensis - Alaska Willow Salix alba - White Willow Salix alpina - Alpine Willow Salix amygdaloides - Peachleaf Willow Salix arbuscula - Mountain Willow Salix arbusculoides - Littletree Willow Salix arctica - Arctic Willow Salix atrocinerea Salix aurita - Eared Willow Salix babylonica - Peking Willow Salix bakko Salix barrattiana... Image File history File links Size of this preview: 800 × 600 pixelsFull resolution (2400 × 1800 pixel, file size: 234 KB, MIME type: image/jpeg) author: Heike Löchel, source: own work File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old... Image File history File links Size of this preview: 800 × 600 pixelsFull resolution (2400 × 1800 pixel, file size: 234 KB, MIME type: image/jpeg) author: Heike Löchel, source: own work File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old... Species About 350, including: Salix acutifolia - Violet Willow Salix alaxensis - Alaska Willow Salix alba - White Willow Salix alpina - Alpine Willow Salix amygdaloides - Peachleaf Willow Salix arbuscula - Mountain Willow Salix arbusculoides - Littletree Willow Salix arctica - Arctic Willow Salix atrocinerea Salix aurita - Eared Willow Salix babylonica - Peking Willow Salix bakko Salix barrattiana... This article or section does not cite any references or sources. ... A flower-fly pollinating a Common Daisy (Bellis perennis) Pollination is an important step in the reproduction of seed plants: the transfer of pollen grains (male gametes) to the plant carpel, the structure that contains the ovule (female gamete). ... Anemophily is a form of pollination whereby pollen is distributed by wind. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta—liverworts Anthocerotophyta—hornworts Bryophyta—mosses Vascular plants (tracheophytes) †Rhyniophyta—rhyniophytes †Zosterophyllophyta—zosterophylls Lycopodiophyta—clubmosses †Trimerophytophyta—trimerophytes Pteridophyta—ferns and horsetails Seed plants (spermatophytes) †Pteridospermatophyta—seed ferns Pinophyta—conifers Cycadophyta—cycads Ginkgophyta—ginkgo Gnetophyta—gnetae Magnoliophyta—flowering plants... Genera Alnus - Alder Betula - Birch Carpinus - Hornbeam Corylus - Hazel Ostrya - Hop-hornbeam Ostryopsis - Hazel-hornbeam Betulaceae, or the Birch Family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams and hop-hornbeams, numbering about 130 species. ... Genera Castanea - Chestnuts Castanopsis Chrysolepis - Golden chinkapin Colombobalanus Cyclobalanopsis Fagus - Beeches Formanodendron Lithocarpus - Stone oaks Nothofagus - Southern beeches Quercus - Oaks Trigonobalanus The family Fagaceae, or beech family, is characterized by alternate leaves with pinnate venation, flowers in the form of catkins, and fruit in the form of nuts, one to... Genera Antiaris Artocarpus - Breadfruit, Jackfruit Brosimum Broussonetia - Paper Mulberry Castilloa Cecropia Chlorophora Dorstenia Ficus - Fig, Banyan Maclura - Osage-orange Morus - Mulberry Musanga Pseudolmedia Streblus Treculia The flowering plant family Moraceae (Mulberry family) comprises some 40 genera and over 1000 species of plants widespread in tropical and subtropical regions, less common... Genera See text. ... Species See List of Quercus species The term oak can be used as part of the common name of any of several hundred species of trees and shrubs in the genus Quercus, and some related genera, notably Cyclobalanopsis and Lithocarpus. ... Species Many species; see text and classification Birch is the name of any tree of the genus Betula, in the family Betulaceae, closely related to the beech/oak family, Fagaceae. ... This article is about the tree; for other meanings of hazel, see Hazel (disambiguation). ... Species About 350, including: Salix acutifolia - Violet Willow Salix alaxensis - Alaska Willow Salix alba - White Willow Salix alpina - Alpine Willow Salix amygdaloides - Peachleaf Willow Salix arbuscula - Mountain Willow Salix arbusculoides - Littletree Willow Salix arctica - Arctic Willow Salix atrocinerea Salix aurita - Eared Willow Salix babylonica - Peking Willow Salix bakko Salix barrattiana... Species About 20-30 species, see text. ... Species Castanea alnifolia - Bush Chinkapin* Castanea crenata - Japanese Chestnut Castanea dentata - American Chestnut Castanea henryi - Henrys Chestnut Castanea mollissima - Chinese Chestnut Castanea ozarkensis - Ozark Chinkapin Castanea pumila - Allegheny Chinkapin Castanea sativa - Sweet Chestnut Castanea seguinii - Seguins Chestnut * treated as a synonym of by many authors Chestnut (Castanea), including... Binomial name Comptonia peregrina (L.) J.M.Coulter Comptonia is a genus of a single species, Comptonia peregrina, in the family Myricaceae, order Fagales. ... This article is about woody plants of the genus Populus. ... Species See text Mulberry (Morus) is a genus of 10–16 species of deciduous trees native to warm temperate and subtropical regions of Asia, Africa and North America, with the majority of the species native to Asia. ...

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Catkins