View source for Crataegus scabrida

{{Treatment/ID
|accepted_name=Crataegus scabrida
|accepted_authority=Sargent
|publications={{Treatment/Publication
|title=Rhodora
|place=3: 29. 1901
|year=1901
}}
|common_names=Rough hawthorn;aubépine scabride
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Crataegus brainerdii var. scabrida
|authority=(Sargent) Eggleston
|rank=variety
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Crataegus;Crataegus sect. Macracanthae;Crataegus (sect. Macracanthae) ser. Anomalae;Crataegus scabrida
|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 scabrida]]</div></div>
|volume=Volume 9
|mention_page=page 522, 524, 637
|treatment_page=page 523
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 30–50 dm. <b>Stems</b>: twigs: new growth reddish early, glabrous, 1-year old deep tan, 2-years old tan to deep reddish brown, older dull gray; thorns on twigs at 1-year old shiny, dark brown to nearly black, stout or slender, 4–6 cm. <b>Leaves</b>: petiole slender, length 40–60% blade, sparsely pubescent or glabrous, eglandular or sessile-glandular; blade short-ovate to ovate, broadly elliptic to narrowly rhombic, or ± trullate, 3–8 cm, base rounded to cuneate, lobes 3–5 per side, margins serrate, veins 5–7(or 8) per side, apex acute, abaxial surface glabrous, adaxial sparsely to densely appressed-pubescent young, glabrescent. <b>Inflorescences</b> 6–10-flowered; branches glabrous or villous. <b>Flowers</b> 15–18 mm diam.; hypanthium glabrous or pubescent; sepals narrowly triangular, margins subentire or glandular-serrate; stamens 7 or 8(–10), anthers pink; styles 3 or 4. <b>Pomes</b> reddish or orange-red, suborbicular, 6–9 mm diam., pruinose, glabrous or slightly pubescent; sepals spreading to ± erose; pyrenes 2–4, sides often pitted. <b>2n</b> = 51.</span><!--

-->{{Treatment/Body
|distribution=N.B.;N.S.;Ont.;Que.;Conn.;Maine;Mass.;Mich.;N.H.;N.Y.;Va.;Vt.;Wis.
|discussion=<p>Varieties 4 (4 in the flora).</p><!--
--><p><i>Crataegus scabrida</i> is variable in leaf shape and size, as well as in pubescence of adaxial leaf surfaces and pedicels. The species falls into four reasonably well-marked varieties, only the first two of which are frequent. The range of the species as a whole is somewhat poorly documented because of frequent incorrect identification.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Inflorescence branches glabrous
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Inflorescence branches villous
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Leaf blades ovate to narrowly rhombic, 4–7 cm.
|[[Crataegus scabrida var. scabrida|Crataegus scabrida var. scabrida]]
|-id=key-0-2
|2
|Leaf blades broadly elliptic, 3–5 cm.
|[[Crataegus scabrida var. cyclophylla|Crataegus scabrida var. cyclophylla]]
|-id=key-0-3
|3
|Leaf blades trullate or broadly trullate, 5–8 cm.
|[[Crataegus scabrida var. asperifolia|Crataegus scabrida var. asperifolia]]
|-id=key-0-3
|3
|Leaf blades short-ovate to broadly elliptic, 4 cm.
|[[Crataegus scabrida var. egglestonii|Crataegus scabrida var. egglestonii]]
|}
</div></div><!--

-->{{#Taxon:
name=Crataegus scabrida
|authority=Sargent
|rank=species
|parent rank=series
|synonyms=Crataegus brainerdii var. scabrida
|basionyms=
|family=Rosaceae
|distribution=N.B.;N.S.;Ont.;Que.;Conn.;Maine;Mass.;Mich.;N.H.;N.Y.;Va.;Vt.;Wis.
|reference=None
|publication title=Rhodora
|publication year=1901
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_885.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Crataegus
|section=Crataegus sect. Macracanthae
|series=Crataegus (sect. Macracanthae) ser. Anomalae
|species=Crataegus scabrida
}}<!--

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[[Category:Treatment]]
[[Category:Crataegus (sect. Macracanthae) ser. Anomalae]]
[[Category:Revised Since Print]]