The Crack Willow (Salix fragilis) is a willow native to Europe and Asia. It is a rapid growing tree to 27 m tall, usually growing beside rivers. The leaves are bright green, 9-15 cm long and 1.5-3 cm wide, with a finely serrated margin. The flowers are catkins, produced in early spring. The conservation status of a species is an indicator of the likelihood of that species continuing to survive. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... 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 Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. ... Orders See text. ... Families Family Achariaceae Family Balanopaceae Family Bonnetiaceae Family Caryocaraceae Family Chrysobalanaceae Family Clusiaceae Family Ctenolophonaceae Family Dichapetalaceae Family Elatinaceae Family Erythryloxaceae (coca family) Family Euphorbiaceae (spurge family) Family Euphroniaceae Family Goupiaceae Family Humiriaceae Family Hypericaceae (St Johns wort family) Family Irvingiaceae Family Ixonanthaceae Family Lacistemaceae Family Linaceae (flax family... Genera See text. ... 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... In biology, binomial nomenclature is the formal method of naming species. ... Carolus Linnaeus, also known after his ennoblement as , (May 23, 1707 – January 10, 1778), was a Swedish botanist, physician and zoologist[1] who laid the foundations for the modern scheme of nomenclature. ... 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... World map showing Europe A satellite composite image of Europe Europe is one of the six inhabited continents of the Earth. ... World map showing the location of Asia. ... The coniferous Coast Redwood, the tallest tree species on earth. ... The leaves of a Beech tree A leaf with laminar structure and pinnate venation In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... Clivia miniata A cluster of flowers (Clivia miniata) A flower, (<Old French flo(u)r<Latin florem<flos), also known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). ...
The name derives from the twigs which break off very easily and cleanly at the base with an audible crack. The broken twigs and branches take root readily, enabling the species to colonise new areas, particularly where the broken twigs fall into rivers and can be carried some distance downstream. It is particularly adept at colonising new riverside sandbanks formed after floods. A twig is a small terminal branch section that bears leaves, buds and usually the flowers and fruit of plants. ... Look up flood in Wiktionary, the free dictionary. ...
Salixfragilis can grow to be a large tree, often dividing into several large branches low on the trunk, or even at the ground level.
Salixfragilis is often mistakenly misidentified as Salix nigra.
Salixfragilis is an introduced species that has become thoroughly naturalized in wet, sunny sites (once established in the open, the forest can grow up around it or with it, but it is rare to see successful seedlings under canopy).
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