View source for Rudbeckia scabrifolia

{{Treatment/ID
|accepted_name=Rudbeckia scabrifolia
|accepted_authority=L. E. Brown
|publications={{Treatment/Publication
|title=Phytologia
|place=61: 367, fig. 1. 1986
|year=1986
}}
|common_names=Roughleaf coneflower
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae;Rudbeckia;Rudbeckia sect. Macrocline;Rudbeckia scabrifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae]]</div><div class="higher-taxon"><small>genus</small>[[Rudbeckia]]</div><div class="higher-taxon"><small>section</small>[[Rudbeckia sect. Macrocline]]</div><div class="higher-taxon"><small>species</small>[[Rudbeckia scabrifolia]]</div></div>
|volume=Volume 21
|mention_page=page 47, 52
|treatment_page=page 51
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Perennials,</b> to 200 cm (rhizomatous, roots fibrous).</span> <span class="statement" id="st-d0_s1" data-properties="leaf coloration;blade shape;blade texture;base shape;margin shape;margin shape;apex shape;face pubescence"><b>Leaves </b>green (dried, dark under reflected UV light), blades elliptic to lanceolate (not lobed), ± leathery, bases attenuate to cuneate or rounded, margins entire or coarsely toothed, apices acute, faces hairy;</span> <span class="statement" id="st-d0_s2" data-properties="basal leaf architecture;basal leaf length;basal leaf width">basal petiolate, 15–65 × 2–15 cm;</span> <span class="statement" id="st-d0_s3" data-properties="cauline leaf architecture;cauline leaf length;cauline leaf width">cauline sessile (proximalmost often petiolate), 5–50 × 2–12 cm (mids ± pandurate, bases auriculate).</span> <span class="statement" id="st-d0_s4" data-properties="array architecture"><b>Heads </b>(to 15) in ± corymbiform arrays.</span> <span class="statement" id="st-d0_s5" data-properties="phyllary some measurement"><b>Phyllaries </b>to 2 cm (margins ciliate).</span> <span class="statement" id="st-d0_s6" data-properties="receptacle shape"><b>Receptacles </b>ovoid to ellipsoid;</span> <span class="statement" id="st-d0_s7" data-properties="palea some measurement;apex shape;abaxial tip pubescence">paleae 6–8 mm, (apical margins densely ciliate) apices acute, abaxial tips hairy.</span> <span class="statement" id="st-d0_s8" data-properties="ray-floret quantity"><b>Ray-</b>florets 10–15;</span> <span class="statement" id="st-d0_s9" data-properties="corolla coloration;lamina shape;lamina length;lamina width;lamina pubescence">corollas yellow, laminae oblong to oblanceolate, 20–40 × 5–12 mm, abaxially hairy.</span> <span class="statement" id="st-d0_s10" data-properties="disc length;disc width"><b>Discs </b>12–25 × 12–20 mm.</span> <span class="statement" id="st-d0_s11" data-properties="disc-floret quantity"><b>Disc-</b>florets 150–400+;</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration;corolla coloration;corolla some measurement">corollas greenish yellow proximally, maroon distally, 3.5–5 mm;</span> <span class="statement" id="st-d0_s13" data-properties="branch-style distance;apex shape">style-branches ca. 2 mm, apices acute.</span> <span class="statement" id="st-d0_s14" data-properties="cypsela some measurement"><b>Cypselae </b>3.5–5 mm;</span> <span class="statement" id="st-d0_s15" data-properties="pappus shape;pappus some measurement;2n chromosome quantity">pappi coroniform, to 2.5 mm. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–fall.
|habitat=Hillside seeps
|elevation=10–60 m
|distribution=La.;Tex.
|discussion=<p>Rudbeckia scabrifolia occurs in western Louisiana and eastern Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rudbeckia scabrifolia
|authority=L. E. Brown
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering late spring–fall.
|habitat=Hillside seeps
|elevation=10–60 m
|distribution=La.;Tex.
|reference=None
|publication title=Phytologia
|publication year=1986
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_106.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae
|genus=Rudbeckia
|section=Rudbeckia sect. Macrocline
|species=Rudbeckia scabrifolia
|2n chromosome quantity=36
|abaxial tip pubescence=hairy
|apex shape=acute;acute;acute
|array architecture=corymbiform
|basal leaf architecture=petiolate
|basal leaf length=15cm;65cm
|basal leaf width=2cm;15cm
|base shape=attenuate;cuneate or rounded
|blade shape=elliptic;lanceolate
|blade texture=leathery
|branch-style distance=2
|cauline leaf architecture=sessile
|cauline leaf length=5cm;50cm
|cauline leaf width=2cm;12cm
|corolla coloration=maroon;greenish yellow;yellow
|corolla some measurement=3.5mm;5mm
|cypsela some measurement=3.5mm;5mm
|disc length=12mm;25mm
|disc width=12mm;20mm
|disc-floret quantity=150;400
|face pubescence=hairy
|lamina length=20mm;40mm
|lamina pubescence=hairy
|lamina shape=oblong;oblanceolate
|lamina width=5mm;12mm
|leaf coloration=green
|margin shape=toothed;entire
|palea some measurement=6mm;8mm
|pappus shape=coroniform
|pappus some measurement=0mm;2.5mm
|phyllary some measurement=0cm;2cm
|ray-floret quantity=10;15
|receptacle shape=ovoid;ellipsoid
|whole-organism duration=perennial
|whole-organism some measurement=0cm;200cm
}}<!--

-->[[Category:Treatment]][[Category:Rudbeckia sect. Macrocline]]