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| − | {{redirect|Black Hawthorn|the steam locomotive manufacturer|Black, Hawthorn & Co}}
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| − | {{italic title}}
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| | {{taxobox | | {{taxobox |
| | |name = ''Crataegus douglasii'' | | |name = ''Crataegus douglasii'' |
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| | |range_map_caption = Natural range of ''Crataegus douglasii'' | | |range_map_caption = Natural range of ''Crataegus douglasii'' |
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| − | '''''Crataegus douglasii''''' is a North American species of [[Crataegus|hawthorn]] known by the common names '''black hawthorn''' and '''Douglas' thornapple'''. It is named after [[David Douglas (botanist)|David Douglas]], who collected seed from the plant during his botanical explorations.
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| − | This thorny [[shrub]] is native to northern and western North America, where it grows in varied habitats from forest to scrubland. It is most abundant in the [[Pacific Northwest]].
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| − | ==Description==
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| − | ''Crataegus douglasii'' is a compact erect bushy shrub covered in fan-shaped green leaves with teeth along the distal margin. Thorns along the branches are one to two centimeters long.
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| − | White flowers with greenish centers grow in bunches at the ends of each thin branch. The fruit is a very dark purple [[pome]] up to about a centimeter across. The fruits were a good food source for Native American peoples such as the [[Cheyenne]] and [[Nlaka'pamux]].
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| − | ==Formerly placed within this species==
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| − | * ''Crataegus douglasii'' var. ''duchesnensis'' is now considered to be a synonym of ''[[Crataegus saligna]]''.
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| − | ==Images==
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| − | <gallery>
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| − | File:Crataegus_douglasii_9816.JPG|Straight, stout thorns are one to two centimeters long.<ref name="Burke">{{cite web|title=Crataegus douglasii|work=WTU Herbarium Image Collection |publisher=Burke Museum, University of Washington|url=http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Crataegus&Species=douglasii|accessdate=2009-12-12}}</ref>
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| − | File:Crataegus_douglasii_9820.JPG|The white flowers have greenish centers.
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| − | File:Crataegus douglasii 9473.JPG|Crataegus douglasii
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| − | File:Crataegus_douglasii_9467.JPG|The leaf margin is toothed and usually slightly lobed.
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| − | File:Crataegus douglasii (5192274425).jpg|Crataegus douglasii leaves changing color in fall.
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| − | Image:Crataegus_douglasii_mature_bark.jpg|The mature bark is grey and rough.<ref name="Pojar">{{cite book | last = Pojar | first = Jim |author2=Andy MacKinnon | title = Plants of the Pacific Northwest | publisher = Lone Pine | pages = 73 | year = 1994 | isbn = 1-55105-042-0}}</ref>
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| − | File:Crataegus douglasii 2.jpg
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| − | File:Crataegus douglasii kz4.jpg
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| − | File:Crataegus douglasii kz1.jpg|Crataegus douglasii
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| − | File:Crataegus douglasii JEPS109866 (4496863581).jpg|Crataegus douglasii JEPS109866 (4496863581)
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| − | </gallery>
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| − | == See also ==
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| − | * [[List of hawthorn species with black fruit]]
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| | ==References== | | ==References== |
| − | {{Commons}}
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| − | *[http://www.fs.fed.us/database/feis/plants/shrub/cradou/all.html USDA Forest Service: Fire Effects Information System]
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| | {{Reflist}} | | {{Reflist}} |
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| − | ==External links==
| + | {{Ack-Wikipedia}} |
| − | *[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?6677,6716,6717 Jepson Manual Treatment - ''Crataegus douglasii'']
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| − | *[http://herb.umd.umich.edu/herb/search.pl?searchstring=Crataegus+douglasii U.Mich: Ethnobotany]
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| − | *[http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Crataegus+douglasii ''Crataegus douglasii'' - Photo gallery]
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| − | {{Taxonbar|from=Q918920}} | |
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| − | [[Category:Crataegus|douglasii]]
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| − | [[Category:Flora of the Northwestern United States]]
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| − | [[Category:Flora of Western Canada]]
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| − | [[Category:Flora of California]]
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| − | [[Category:Flora of the Great Lakes region (North America)]]
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| − | [[Category:Flora of the North-Central United States]]
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| − | [[Category:Flora of North America]]
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| − | {{Rosales-stub}}
| + | [[Category:Rosaceae]] |
| | + | [[Category:Plants for Keenan to eat]] |
