View source for Holodiscus discolor var. discolor

{{Treatment/ID
|accepted_name=Holodiscus discolor var. discolor
|accepted_authority=
|publications=
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Holodiscus australis
|authority=A. Heller
|rank=species
}} {{Treatment/ID/Synonym
|name=H. boursieri
|authority=(Carrière) Rehder
|rank=species
}} {{Treatment/ID/Synonym
|name=H. discolor var. delnortensis
|authority=F. A. Ley
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. discolor var. franciscanus
|authority=(Rydberg) Jepson
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. dumosus var. australis
|authority=(A. Heller) F. A. Ley
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. dumosus subsp. saxicola
|authority=(A. Heller) Abrams
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Spiraea ariifolia
|authority=
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Spiraeeae;Holodiscus;Holodiscus discolor;Holodiscus discolor var. discolor
|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 Spiraeeae]]</div><div class="higher-taxon"><small>genus</small>[[Holodiscus]]</div><div class="higher-taxon"><small>species</small>[[Holodiscus discolor]]</div><div class="higher-taxon"><small>variety</small>[[Holodiscus discolor var. discolor]]</div></div>
|volume=Volume 9
|mention_page=page 419
|treatment_page=page 418
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="stem some measurement"><b>Stems </b>1–6 m.</span> <span class="statement" id="st-d0_s1" data-properties="petiole fusion;blade shape"><b>Leaves:</b> long-shoots (predominant): petiole distinct, rarely with decurrent blades;</span> <span class="statement" id="st-d0_s2" data-properties="blade shape;blade length;blade width;base width;base architecture or shape;base shape;apex shape">blade broadly trullate or ovate to slightly rhombic, maximal width usually in proximal 1/4 of blade, 2–10 × 1–8 cm, base obtuse and truncate, sometimes to slightly acute, apex obtuse;</span> <span class="statement" id="st-d0_s3" data-properties="petiole fusion;blade shape;blade position;blade position;blade length;blade width;base shape;base architecture or shape;base shape;apex shape">short-shoots (absent or not predominant): petiole usually distinct, blade ovate to slightly rhombic, maximal width proximal to midpoint, 2–8 × 1–7 cm, base obtuse and truncate, sometimes acute, margins usually with secondary teeth, apex obtuse.</span> <span class="statement" id="st-d0_s4" data-properties=""><b>Inflorescences </b>(2–) 4–20 × (2–) 4–15 cm, multibranched, dense.</span> <span class="statement" id="st-d0_s5" data-properties="inflorescence atypical length;inflorescence length;inflorescence atypical width;inflorescence width;inflorescence architecture or shape;inflorescence density;2n chromosome quantity">2n = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Aug.
|habitat=Open woodlands, forest edges, thickets, dry to moist, often partially shaded, rocky slopes
|elevation=0–3000 m
|distribution=B.C.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Tex.;Utah;Wash.;Wyo.;Mexico (Baja California);Mexico (Chihuahua);Mexico (Distrito Federal);Mexico (Durango);Mexico (Guanajuato);Mexico (Nuevo León);Mexico (Querétaro);Mexico (San Luis Potosí);Mexico (Sonora);Mexico (Zacatecas)
|discussion=<p>As treated here, var. discolor covers wide elevational and latitudinal ranges and displays significant variation. The variety includes populations that might best be segregated to produce a classification within the species that would more precisely reflect the morphologic, ecologic, and geographic patterns observed. In a detailed study of leaf variation and carpel morphology in northeastern Oregon and Washington, C. J. Antieau (1985) found that: phenotype is a reliable indicator of general patterns of genetic divergence; for the characters examined, inherent variation was non-random; and, morphologies observed in field collections were being maintained in cultivation. Although the study by Antieau was on a restricted region of the range of Holodiscus discolor, his observations may be applicable to the species as a whole; infraspecific taxa with consistent phenotypic expressions and genetic bases might be segregated after further study.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Holodiscus discolor var. discolor
|authority=
|rank=variety
|parent rank=species
|synonyms=Holodiscus australis;H. boursieri;H. discolor var. delnortensis;H. discolor var. franciscanus;H. dumosus var. australis;H. dumosus subsp. saxicola;Spiraea ariifolia
|basionyms=
|family=Rosaceae
|phenology=Flowering Apr–Aug.
|habitat=Open woodlands, forest edges, thickets, dry to moist, often partially shaded, rocky slopes
|elevation=0–3000 m
|distribution=B.C.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Tex.;Utah;Wash.;Wyo.;Mexico (Baja California);Mexico (Chihuahua);Mexico (Distrito Federal);Mexico (Durango);Mexico (Guanajuato);Mexico (Nuevo León);Mexico (Querétaro);Mexico (San Luis Potosí);Mexico (Sonora);Mexico (Zacatecas)
|reference=None
|publication title=
|publication year=
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V9/V9_704.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Spiraeeae
|genus=Holodiscus
|species=Holodiscus discolor
|variety=Holodiscus discolor var. discolor
|2n chromosome quantity=36
|apex shape=obtuse;obtuse
|base architecture or shape=truncate;truncate
|base shape=acute;obtuse;acute
|base width=obtuse
|blade length=2cm;8cm
|blade position=proximal;midpoint
|blade shape=ovate;slightly rhombic
|blade width=1cm;7cm
|inflorescence architecture or shape=multibranched
|inflorescence atypical length=2cm;4cm
|inflorescence atypical width=2cm;4cm
|inflorescence density=dense
|inflorescence length=4cm;20cm
|inflorescence width=4cm;15cm
|petiole fusion=distinct;distinct
|stem some measurement=1m;6m
}}<!--

-->[[Category:Treatment]][[Category:Holodiscus discolor]]