View source for Schkuhria ← Schkuhria 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=Schkuhria |accepted_authority=Roth |publications={{Treatment/Publication |title=Catal. Bot. |place=1: 116. 1797 |year=1797 }} |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Schkuhria |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 Chaenactidinae]]</div><div class="higher-taxon"><small>genus</small>[[Schkuhria]]</div></div> |etymology=For Christian Schkuhr, 1741–1811, German botanist |volume=Volume 21 |mention_page=page 364, 365, 382 |treatment_page=page 381 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Annuals,</b> 5–50+ cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture;stem architecture"><b>Stems </b>erect, simple or branched (usually distally).</span> <span class="statement" id="st-d0_s2" data-properties="leaf position"><b>Leaves </b>mostly cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">mostly opposite (distal sometimes alternate);</span> <span class="statement" id="st-d0_s4" data-properties="leaf arrangement;leaf architecture;leaf architecture">petiolate or sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;ultimate margin architecture or shape;face pubescence;face pubescence">blades linear to filiform or 1–2-pinnately lobed (lobes 3–7+, linear to filiform), ultimate margins entire, faces sparsely hairy (hairs bulbous, conic, or fusiform, 0.1–0.3 mm), glabrescent, usually glanddotted.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture;head architecture;array architecture;array architecture"><b>Heads </b>radiate or discoid, usually in loose, corymbiform to paniculiform arrays.</span> <span class="statement" id="st-d0_s7" data-properties=""><b>Involucres </b>obconic-obpyramidal to ± turbinate or hemispheric, 3–6 mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="involucre shape;involucre diameter">(subtended by 0–3 bractlets).</span> <span class="statement" id="st-d0_s9" data-properties="phyllary duration;phyllary quantity;series quantity"><b>Phyllaries </b>persistent, 4–6+ in 1–2 series (spreading or reflexed in fruit, distinct, obovate to oblanceolate, subequal, thin-herbaceous to membranous, margins membranous, often purplish or yellowish).</span> <span class="statement" id="st-d0_s10" data-properties="receptacle shape;receptacle relief;receptacle architecture"><b>Receptacles </b>convex, pitted, epaleate.</span> <span class="statement" id="st-d0_s11" data-properties="ray-floret presence;ray-floret quantity;ray-floret architecture;ray-floret reproduction"><b>Ray-</b>florets 0 or 1–2, pistillate, fertile;</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration;corolla coloration">corollas yellow or white.</span> <span class="statement" id="st-d0_s13" data-properties="disc-floret atypical quantity;disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 2–8 (–30+), bisexual, fertile;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration;corolla coloration;tube height or length or size;throat variability;throat shape;lobe quantity;lobe shape">corollas yellow to yellowish, sometimes red-tipped (± stipitate-glandular), tubes shorter than or about equaling campanulate to funnelform throats, lobes 5, deltate.</span> <span class="statement" id="st-d0_s15" data-properties="cypsela shape;cypsela shape;cypsela architecture;cypsela pubescence"><b>Cypselae </b>narrowly obpyramidal, 4-angled, finely nerved, ± hirsutulous to villous (at least at bases and/or on angles);</span> <span class="statement" id="st-d0_s16" data-properties="scale quantity;scale shape">pappi persistent, of 8+ spatulate to lanceolate (basally and/or medially thickened, distally and/or laterally scarious) scales (all, some, none, or the alternate ones ± aristate).</span> <span class="statement" id="st-d0_s17" data-properties="pappus duration;x chromosome quantity">x = 11.</span><!-- -->{{Treatment/Body |distribution=sw United States;Mexico;Central America;South America |discussion=<p>Species 2 or perhaps more (2 in the flora).</p><!-- --><p>According to B. G. Baldwin et al. (2002), among others, Schkuhria is closely related to Achyropappus Kunth and to Bahia.</p> |tables= |references={{Treatment/Reference |id=heiser1945a |text=Heiser, C. B. 1945. A revision of the genus Schkuhria. Ann. Missouri Bot. Gard. 32: 265–278. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Phyllaries ± hirsutulous and gland-dotted; ray florets 0; disc florets 15–30 |[[Schkuhria multiflora|Schkuhria multiflora]] |-id=key-0-1 |1 |Phyllaries gland-dotted, otherwise usually glabrous; ray florets usually 1–2, sometimes 0; disc florets 2–6(–8+) |[[Schkuhria pinnata|Schkuhria pinnata]] |} </div></div><!-- -->{{#Taxon: name=Schkuhria |author=John L. Strother |authority=Roth |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |illustrator=Bee F. Gunn |illustration copyright=Flora of North America Association |distribution=sw United States;Mexico;Central America;South America |reference=heiser1945a |publication title=Catal. Bot. |publication year=1797 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_959.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae |genus=Schkuhria |array architecture=corymbiform;paniculiform |blade shape=linear;filiform or 1-2-pinnately lobed |corolla coloration=red-tipped;yellow;yellowish |cypsela architecture=nerved |cypsela pubescence=less hirsutulous;villous |cypsela shape=4-angled;obpyramidal |disc-floret atypical quantity=8;30 |disc-floret quantity=2;8 |disc-floret reproduction=fertile;bisexual |face pubescence=glabrescent;hairy |head architecture=discoid;radiate |involucre diameter=3mm;6mm |involucre shape=obconic-obpyramidal;more or less turbinate or hemispheric |leaf architecture=sessile;petiolate |leaf arrangement=opposite |leaf position=cauline |lobe quantity=5 |lobe shape=deltate |pappus duration=persistent |phyllary duration=persistent |phyllary quantity=4;6 |ray-floret architecture=pistillate |ray-floret presence=absent |ray-floret quantity=1;2 |ray-floret reproduction=fertile |receptacle architecture=epaleate |receptacle relief=pitted |receptacle shape=convex |scale shape=spatulate;lanceolate |series quantity=1;2 |stem architecture=branched;simple |stem orientation=erect |throat shape=campanulate |throat variability=equaling |tube height or length or size=shorter |ultimate margin architecture or shape=entire |whole-organism duration=annual |whole-organism some measurement=5cm;50cm |x chromosome quantity=11 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]] 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) Template:Treatment/Reference (view source) Return to Schkuhria.