View source for Tussilago

{{Treatment/ID
|accepted_name=Tussilago
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 865. 1753
|year=1753
}}, {{Treatment/Publication
|title=Gen. Pl. ed.
|place=5, 372. 1754
|year=1754
}}
|common_names=Coltsfoot
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Tussilago
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Senecioneae]]</div><div class="higher-taxon"><small>genus</small>[[Tussilago]]</div></div>
|etymology=Said to be based on Latin tussi s, cough, for which the plant has a medicinal reputation
|volume=Volume 20
|mention_page=page 541
|treatment_page=page 635
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism atypical some measurement;whole-organism some measurement;whole-organism duration"><b>Perennials,</b> 5–30 (–50) cm (rhizomes fibrous-rooted, creeping; plants forming extensive colonies).</span> <span class="statement" id="st-d0_s1" data-properties="stem quantity;stem orientation"><b>Stems </b>usually 1, erect (scapiform, not branched).</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>basal and cauline (basal usually developing after flowers);</span> <span class="statement" id="st-d0_s3" data-properties="">alternate;</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf position;leaf arrangement;leaf architecture;leaf architecture">petiolate (petiole lengths 1–2 times blades) or sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade architecture;blade shape;margin shape;abaxial face pubescence;adaxial face pubescence;adaxial face pubescence">blades (basal) palmately nerved, orbiculate to polygonal or lobed (cauline leaves lanceovate to linear, bractlike or scalelike), margins denticulate, abaxial faces gray-tomentose, adaxial tomentulose, glabrescent.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or arrangement;head arrangement"><b>Heads </b>(erect at flowering, nodding in fruit) radiate, borne singly.</span> <span class="statement" id="st-d0_s7" data-properties="calyculus presence"><b>Calyculi </b>0 (or indistinct, bractlets intergrading with bractlike cauline leaves).</span> <span class="statement" id="st-d0_s8" data-properties=""><b>Involucres </b>cylindric to subturbinate, 10–15 mm diam.</span> <span class="statement" id="st-d0_s9" data-properties="involucre shape;involucre diameter">(larger in fruit).</span> <span class="statement" id="st-d0_s10" data-properties="phyllarie duration;phyllarie quantity;phyllarie orientation;phyllarie fusion;phyllarie arrangement or course or shape;phyllarie size;series atypical quantity;series quantity;margin texture"><b>Phyllaries </b>persistent, usually ± 21 in (1–) 2 series, erect, distinct, lance-linear to linear, subequal, margins scarious (apices greenish or yellow-green).</span> <span class="statement" id="st-d0_s11" data-properties="receptacle shape;receptacle relief;receptacle architecture"><b>Receptacles </b>convex, foveolate (socket margins ± membranous), epaleate.</span> <span class="statement" id="st-d0_s12" data-properties="ray-floret atypical quantity;ray-floret quantity;ray-floret architecture;ray-floret reproduction"><b>Ray-</b>florets 100–200 (–300+), pistillate, fertile;</span> <span class="statement" id="st-d0_s13" data-properties="corolla coloration">corollas yellow (drying pinkish).</span> <span class="statement" id="st-d0_s14" data-properties="disc-floret atypical quantity;disc-floret quantity;disc-floret architecture"><b>Disc-</b>florets (20–) 30–40, functionally staminate;</span> <span class="statement" id="st-d0_s15" data-properties="corolla coloration;tube length or size;throat shape;lobe quantity;lobe orientation;lobe arrangement or course or shape">corollas yellowish, tubes longer than campanulate throats, lobes 5, erect, linear;</span> <span class="statement" id="st-d0_s16" data-properties="style shape">styles not divided.</span> <span class="statement" id="st-d0_s17" data-properties="cypsela shape;cypsela shape;cypsela architecture or shape;cypsela pubescence"><b>Cypselae </b>narrowly cylindric or ± prismatic, 5 (–10) -ribbed, glabrous;</span> <span class="statement" id="st-d0_s18" data-properties="bristle quantity;bristle coloration;bristle architecture;bristle architecture">pappi readily falling or fragile, of 60–100+, white, barbellulate or smooth bristles.</span> <span class="statement" id="st-d0_s19" data-properties="pappus life cycle;pappus fragility;x chromosome quantity">x = 30.</span><!--

-->{{Treatment/Body
|distribution=temperate Eurasia;n Africa
|introduced=true
|discussion=<p>Species 1.</p>
|tables=
|references={{Treatment/Reference
|id=morton1978a
|text=Morton, G. H. 1978. Tussilago. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Ser. 2, part 10, p. 174.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Tussilago
|author=Theodore M. Barkley†
|authority=Linnaeus
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=temperate Eurasia;n Africa
|introduced=true
|reference=morton1978a
|publication title=Sp. Pl.;Gen. Pl. ed.
|publication year=1753;1754
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20_1432.xml
|tribe=Asteraceae tribe Senecioneae
|genus=Tussilago
|abaxial face pubescence=gray-tomentose
|adaxial face pubescence=glabrescent;tomentulose
|blade architecture=nerved
|blade shape=orbiculate;polygonal or lobed
|bristle architecture=smooth;barbellulate
|bristle coloration=white
|bristle quantity=60;100
|calyculus presence=absent
|corolla coloration=yellowish;yellow
|cypsela architecture or shape=5(-10)-ribbed
|cypsela pubescence=glabrous
|cypsela shape=prismatic;cylindric
|disc-floret architecture=staminate
|disc-floret atypical quantity=20;30
|disc-floret quantity=30;40
|head architecture or arrangement=radiate
|head arrangement=singly
|involucre diameter=10mm;15mm
|involucre shape=cylindric;subturbinate
|leaf architecture=sessile;petiolate
|leaf arrangement=alternate
|leaf position=cauline;basal
|lobe arrangement or course or shape=linear
|lobe orientation=erect
|lobe quantity=5
|margin shape=denticulate
|margin texture=scarious
|pappus fragility=fragile
|pappus life cycle=falling
|phyllarie arrangement or course or shape=lance-linear;linear
|phyllarie duration=persistent
|phyllarie fusion=distinct
|phyllarie orientation=erect
|phyllarie quantity=21
|phyllarie size=subequal
|ray-floret architecture=pistillate
|ray-floret atypical quantity=200;300
|ray-floret quantity=100;200
|ray-floret reproduction=fertile
|receptacle architecture=epaleate
|receptacle relief=foveolate
|receptacle shape=convex
|series atypical quantity=1;2
|series quantity=2
|stem orientation=erect
|stem quantity=1
|style shape=not divided
|throat shape=campanulate
|tube length or size=longer
|whole-organism atypical some measurement=30cm;50cm
|whole-organism duration=perennial
|whole-organism some measurement=5cm;30cm
|x chromosome quantity=30
}}<!--

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