View source for Crataegus florifera

{{Treatment/ID
|accepted_name=Crataegus florifera
|accepted_authority=Sargent
|publications={{Treatment/Publication
|title=Ontario Nat. Sci. Bull.
|place=4: 14. 1908
|year=1908
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Crataegus celsa
|authority=Sargent
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Crataegus;Crataegus sect. Macracanthae;Crataegus (sect. Macracanthae) ser. Anomalae;Crataegus florifera
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Gillenieae]]</div><div class="higher-taxon"><small>genus</small>[[Crataegus]]</div><div class="higher-taxon"><small>section</small>[[Crataegus sect. Macracanthae]]</div><div class="higher-taxon"><small>series</small>[[Crataegus (sect. Macracanthae) ser. Anomalae]]</div><div class="higher-taxon"><small>species</small>[[Crataegus florifera]]</div></div>
|volume=Volume 9
|mention_page=page 516, 522, 574, 635
|treatment_page=page 523
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, 70 dm. <b>Stems</b>: twigs: new growth ± reddish young, soon glabrescent, 1-year old glossy red-brown, 2-years old duller, older dull gray; thorns on twigs at 1-year old shiny, black, stout to ± slender, 4–6 cm. <b>Leaves</b>: petiole length 30–70% blade, slightly pubescent young, glabrescent, eglandular; blade suborbiculate or broadly ovate to obovate, 4–7 cm, base narrowly to broadly cuneate or rounded, lobes 3 or 4 per side, obscure to well-marked, margins serrulate, veins 5 or 6 per side, apex acute, abaxial surface sparsely hairy, densely pubescent along veins, adaxial pubescent (late persistent). <b>Inflorescences</b> 6–10-flowered; branches villous; bracteoles: anthesis late mid season. <b>Flowers</b> 17–20 mm diam.; hypanthium sparsely pilose; sepals narrowly triangular, margins glandular-serrate; stamens 20, anthers rose to dark red; styles 2–4. <b>Pomes</b> deep red, suborbicular, 8–13 mm diam., glabrous; sepals erose or reflexed; pyrenes 2–4, sides plane to erose. <b>2n</b> = 68.</span><!--

-->{{Treatment/Body
|phenology=Flowering May; fruiting Sep–Oct.
|habitat=Successional fields, pastures with woody invaders, fencerows
|elevation=100–300 m
|distribution=Ont.;N.Y.
|discussion=<p><i>Crataegus florifera</i> is frequent in western southern Ontario.</p><!--
--><p>There appear to be two main entities here: typical florifera (= <i>Crataegus</i> celsa), plausibly of hybrid origin between <i>C. punctata</i> and <i>C. succulenta</i> (E. J. Palmer 1952), with narrower, somewhat obovate leaves and petiole length 30–40% blade, and a sylvestris type, named for the later homonym C. sylvestris Sargent, with much broader leaves and petiole length often 50–70% blade.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Crataegus florifera
|authority=Sargent
|rank=species
|parent rank=series
|synonyms=Crataegus celsa
|basionyms=
|family=Rosaceae
|phenology=Flowering May; fruiting Sep–Oct.
|habitat=Successional fields, pastures with woody invaders, fencerows
|elevation=100–300 m
|distribution=Ont.;N.Y.
|reference=None
|publication title=Ontario Nat. Sci. Bull.
|publication year=1908
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_883.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Crataegus
|section=Crataegus sect. Macracanthae
|series=Crataegus (sect. Macracanthae) ser. Anomalae
|species=Crataegus florifera
}}<!--

-->[[Category:Treatment]][[Category:Crataegus (sect. Macracanthae) ser. Anomalae]]