View source for Frangula betulifolia

{{Treatment/ID
|accepted_name=Frangula betulifolia
|accepted_authority=(Greene) Grubov
|publications={{Treatment/Publication
|title=Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast.
|place=8: 268. 1949
|year=1949
}}
|common_names=Birchleaf buckthorn
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Rhamnus betulifolia
|authority=Greene
|publication_title=Pittonia
|publication_place=3: 16. 1896
}}
|synonyms=
|hierarchy=Rhamnaceae;Frangula;Frangula betulifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rhamnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Frangula]]</div><div class="higher-taxon"><small>species</small>[[Frangula betulifolia]]</div></div>
|volume=Volume 12
|mention_page=page 53, 55
|treatment_page=page 58
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or small trees, 1–4 m. <b>Stems</b> brown to gray-brown, glabrous or pubescent. <b>Leaves</b> deciduous; petiole (2–)5–16 mm; blade yellowish green abaxially, green adaxially, elliptic to oblong, elliptic-ovate or narrowly ovate, (4–)4.5–10 x (2–)2.5–5.5 cm, 1.6–2.6(–2.9) times longer than wide, ± herbaceous, base obtuse to truncate or rounded, margins serrate to subcrenate, apex usually acute to obtuse, sometimes slightly acuminate, both surfaces hirtellous, glabrescent; secondary veins (8–)9–13 pairs. <b>Inflorescences</b> umbels, pedunculate, 2–20(–38)-flowered. <b>Pedicels</b> 3–7 mm. <b>Stigmas</b> 3-lobed. <b>Drupes</b> black, globose, 5–10 mm; stones (2–)3(–4).</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun.
|habitat=Moist canyons, stream banks, rocky slopes, cliff bases, ledges, ridges, roadsides, deciduous, coniferous, and mixed woodlands.
|elevation=900–2800 m.
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Coahuila;Durango;Nuevo León;Sonora;Tamaulipas).
|discussion=<p>In the flora area, <i>Frangula betulifolia</i> is found in southeastern Arizona, the southern two-thirds of New Mexico, and trans-Pecos Texas. It and <i>F. obovata</i> are allopatric and morphologically distinct. C. B. Wolf (1938) considered a collection from Cochise County in southeastern Arizona, named as <i>Rhamnus</i> blumeri (<i>Frangula</i> ×blumeri), to be a hybrid between <i>Frangula betulifolia</i> and <i>F. californica</i> var. ursina; see the discussion of the latter taxon for more information.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Frangula betulifolia
|author=
|authority=(Greene) Grubov
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Rhamnus betulifolia
|family=Rhamnaceae
|phenology=Flowering Apr–Jun.
|habitat=Moist canyons, stream banks, rocky slopes, cliff bases, ledges, ridges, roadsides, deciduous, coniferous, and mixed woodlands.
|elevation=900–2800 m.
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Coahuila;Durango;Nuevo León;Sonora;Tamaulipas).
|reference=None
|publication title=Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast.
|publication year=1949
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_528.xml
|genus=Frangula
|species=Frangula betulifolia
}}<!--

-->[[Category:Treatment]][[Category:Frangula]]