View source for Tanacetum ← Tanacetum You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Tanacetum |accepted_authority=Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=2: 843. 1753 |year=1753 }}, {{Treatment/Publication |title=Gen. Pl. ed. |place=5, 366. 1754 |year=1754 }} |common_names=Tansy;tanaisie |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Anthemideae;Tanacetum |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Anthemideae]]</div><div class="higher-taxon"><small>genus</small>[[Tanacetum]]</div></div> |etymology=Derivation unknown; possibly Greek athanasia, immortality, through Medieval Latin tanazita |volume=Volume 19 |mention_page=page 31, 48, 49, 52, 53, 68, 486, 488 |treatment_page=page 489 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Perennials </b>[annuals, subshrubs], 5–150 cm (usually rhizomatous; usually aromatic).</span> <span class="statement" id="st-d0_s1" data-properties="stem quantity;stem quantity;stem orientation;stem architecture;stem pubescence;stem pubescence"><b>Stems </b>1 or 2–5+, erect or prostrate to ascending, branched proximally and/or distally, glabrous or hairy (hairs basifixed and/or medifixed, sometimes stellate).</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>basal and/or cauline;</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 or sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;ultimate margin shape;ultimate margin shape;ultimate margin shape;ultimate margin shape;ultimate margin shape;face pubescence;face pubescence">blades mostly obovate to spatulate, usually 1–3-pinnately lobed, ultimate margins entire, crenate, or dentate, faces glabrous or hairy.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or arrangement;head architecture or shape;head arrangement"><b>Heads </b>usually radiate, sometimes disciform (or quasi-radiate or radiant), usually in lax to dense, corymbiform arrays, rarely borne singly.</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre width;involucre diameter;involucre diameter"><b>Involucres </b>mostly hemispheric or broader, (3–) 5–22+ mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary atypical quantity;phyllary quantity;phyllary fusion;phyllary shape;phyllary size;series atypical quantity;series quantity;margin texture;apex texture"><b>Phyllaries </b>persistent, (20–) 30–60+ in (2–) 3–5+ series, distinct, ± ovate to oblong or oblong to lanceolate or lance-linear (sometimes carinate), unequal, margins and apices (pale to dark-brown or blackish) scarious (tips sometimes dilated).</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>flat to conic or hemispheric (sometimes hairy), epaleate.</span> <span class="statement" id="st-d0_s10" data-properties="ray-floret quantity;ray-floret presence"><b>Ray-</b>florets usually 10–21+ (pistillate and fertile or neuter; corollas pale-yellow to yellow or white, usually with yellowish bases [pink], laminae oblong to flabellate), sometimes 0 (in disciform or quasi-radiate or radiant heads, peripheral pistillate florets 8–30+; corollas pale-yellow, ± zygomorphic, lobes 3–4, sometimes ± raylike).</span> <span class="statement" id="st-d0_s11" data-properties="disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 60–300+, bisexual, fertile;</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration;tube shape;throat shape;lobe atypical quantity;lobe quantity;lobe shape">corollas yellow, tubes ± cylindric, throats narrowly funnelform to campanulate, lobes (4–) 5, ± deltate.</span> <span class="statement" id="st-d0_s13" data-properties="cypsela shape;cypsela shape;rib atypical quantity;rib atypical quantity;rib quantity;face coloration;face pubescence"><b>Cypselae </b>obconic or ± columnar (circular in cross-section), ribs (4–) 5–10 (–12+), faces usually gland-dotted, sometimes glabrous (pericarps without myxogenic cells or resin sacs, embryo-sac development tetrasporic);</span> <span class="statement" id="st-d0_s14" data-properties="">pappi usually coroniform, rarely 0 [distinct scales or each pappus an adaxial auricle].</span> <span class="statement" id="st-d0_s15" data-properties="pappus shape;pappus presence;x chromosome quantity">x = 9 (polyploidy).</span><!-- -->{{Treatment/Body |distribution=North America;Europe;Asia;n Africa;some species widely cultivated |discussion=<p>Species 160 (4 in the flora).</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Leaves usually not pinnately lobed (sometimes with 1–4+ lateral lobes near bases of blades), ultimate margins ± crenate |[[Tanacetum balsamita|Tanacetum balsamita]] |-id=key-0-1 |1 |Leaves usually 1–3-pinnately lobed, ultimate margins entire or dentate |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Leaf blades 1–2-pinnately lobed (primary lobes 3–5 pairs, ± ovate), faces (at least abaxial) usually puberulent; ray florets 10–21+ (more in "doubles"), corollas white, laminae 2–8(–12+) mm; pappi 0 or coroniform (0.1–0.2+ mm) |[[Tanacetum parthenium|Tanacetum parthenium]] |-id=key-0-2 |2 |Leaf blades 2–3-pinnately lobed (primary lobes 4–24+ pairs, ± oblong to elliptic or linear), faces usually arachno-villous to villous, sometimes glabrescent or glabrous; ray florets 0 or 8–30+, corollas pale yellow to yellow, laminae 1–8+ mm; pappi coroniform (0.1–0.5+ mm) |[[#key-0-3| > 3]] |-id=key-0-3 |3 |Leaves: faces glabrous or sparsely hairy; heads (disciform) 20–200 in corymbiform arrays; involucres 5–10 mm diam |[[Tanacetum vulgare|Tanacetum vulgare]] |-id=key-0-3 |3 |Leaves: faces usually ± villous or arachno-villous to lanate, sometimes glabrescent or glabrate; heads (radiate, quasi-radiant or -radiate, or disciform) (2–)5–12(–20+) in corymbiform arrays or borne singly; involucres 8–22+ mm diam |[[Tanacetum bipinnatum|Tanacetum bipinnatum]] |} </div></div><!-- -->{{#Taxon: name=Tanacetum |author=Linda E. Watson |authority=Linnaeus |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Asteraceae |distribution=North America;Europe;Asia;n Africa;some species widely cultivated |reference=None |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/V19_816.xml |tribe=Asteraceae tribe Anthemideae |genus=Tanacetum |apex texture=scarious |blade shape=lobed;mostly obovate;spatulate |corolla coloration=yellow |cypsela shape=columnar;obconic |disc-floret quantity=60;300 |disc-floret reproduction=fertile;bisexual |face coloration=gland-dotted |face pubescence=glabrous;hairy;glabrous |head architecture or arrangement=radiate |head architecture or shape=disciform |head arrangement=singly |involucre diameter=5mm;22mm |involucre shape=hemispheric |involucre width=broader |leaf architecture=sessile;petiolate |leaf arrangement=alternate |leaf position=cauline;basal |lobe atypical quantity=4;5 |lobe quantity=5 |lobe shape=deltate |margin texture=scarious |pappus presence=absent |pappus shape=coroniform |phyllary atypical quantity=20;30 |phyllary duration=persistent |phyllary fusion=distinct |phyllary quantity=30;60 |phyllary shape=less ovate;oblong or oblong |phyllary size=unequal |ray-floret presence=absent |ray-floret quantity=10;21 |receptacle architecture=epaleate |receptacle shape=flat;conic or hemispheric |rib atypical quantity=10;12 |rib quantity=5;10 |series atypical quantity=2;3 |series quantity=3;5 |stem architecture=branched |stem orientation=prostrate;ascending |stem pubescence=hairy;glabrous |stem quantity=2;5 |throat shape=campanulate |tube shape=cylindric |ultimate margin shape=dentate;crenate;dentate;crenate;entire |whole-organism duration=perennial |whole-organism some measurement=5cm;150cm |x chromosome quantity=9 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae tribe Anthemideae]] Templates used on this page: Template:Asteraceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Tanacetum.