View source for Flaveria ← Flaveria 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=Flaveria |accepted_authority=Jussieu |publications={{Treatment/Publication |title=Gen. Pl., |place=186. 1789 |year=1789 }} |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Flaveriinae;Flaveria |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 Flaveriinae]]</div><div class="higher-taxon"><small>genus</small>[[Flaveria]]</div></div> |etymology=Latin flavus, yellow |volume=Volume 21 |mention_page=page 245, 248, 249, 250 |treatment_page=page 247 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism duration;whole-organism some measurement;whole-organism duration;whole_organism growth form"><b>Annuals,</b> perennials, or subshrubs, to 200+ cm [trees to 400 cm] (usually ± succulent, herbage usually glaucous).</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem architecture"><b>Stems </b>(often purplish) erect or decumbent, branched distally or ± throughout.</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">opposite (decussate);</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf arrangement;leaf architecture;leaf architecture">petiolate or sessile (weakly connate to connate-perfoliate);</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;margin architecture or shape;margin architecture or shape;margin architecture or shape;face pubescence;face pubescence">blades (often 3-nerved) oblong-ovate to lanceolate or linear, margins entire, serrate, or spinulose-serrate, faces glabrous or short-pubescent.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture;head architecture;aggregation arrangement or density;aggregation architecture or fragility;glomerule architecture"><b>Heads </b>radiate or discoid, usually in tight or loose aggregations in (often flat-topped) ± corymbiform arrays or glomerules.</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre shape;involucre shape;involucre shape;involucre shape;involucre shape;involucre diameter"><b>Involucres </b>oblong, urceolate, cylindric, or turbinate, 0.5–2 mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary atypical quantity;phyllary quantity;series quantity"><b>Phyllaries </b>persistent, 2–6 (–9) in ± 1 series (linear, concave, or boatshaped, subequal).</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>convex, epaleate (“receptacles” of glomerules sometimes setose).</span> <span class="statement" id="st-d0_s10" data-properties="ray-floret atypical quantity;ray-floret quantity;ray-floret architecture;ray-floret reproduction"><b>Ray-</b>florets 0–1 (–2), pistillate, fertile;</span> <span class="statement" id="st-d0_s11" data-properties="corolla coloration;corolla coloration">corollas yellow or whitish (laminae inconspicuous).</span> <span class="statement" id="st-d0_s12" data-properties="disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 1–15, bisexual, fertile;</span> <span class="statement" id="st-d0_s13" data-properties="corolla coloration;tube height or length or size;funnelform variability;lobe quantity;lobe shape">corollas yellow, tubes shorter than to about equaling funnelform to campanulate throats, lobes 5, ± deltate.</span> <span class="statement" id="st-d0_s14" data-properties="cypsela shape;cypsela shape;cypsela shape"><b>Cypselae </b>(black) weakly compressed, narrowly oblanceolate or linear-oblong (usually 10-nerved, glabrous);</span> <span class="statement" id="st-d0_s15" data-properties="scale quantity;scale coloration">pappi usually 0, sometimes persistent, of 2–4 hyaline scales, or coroniform (of connate scales).</span> <span class="statement" id="st-d0_s16" data-properties="pappus presence;pappus duration;pappus shape;x chromosome quantity">x = 18.</span><!-- -->{{Treatment/Body |distribution=United States;Mexico;West Indies (Greater Antilles);Central America;South America;Asia (India);Africa;Australia |discussion=<p>Species 21 (8 in the flora).</p><!-- --><p>Members of Flaveria are frequently found in alkaline, saline, and gypseous soils, often in disturbed and moist areas. Heads of Flaveria may be either radiate or discoid; when both are present in the same capitulescence, the discoid heads tend to be central and the radiate heads peripheral. Many species of Flaveria have persistent sheathing leaf bases that ring the stems after the leaves have fallen.</p><!-- --><p>Flaveria is notable because certain species exhibit C3 photosynthesis, some C3–C4 (intermediate) photosynthesis, and others (F. brownii, F. bidentis, F. campestris, and F. trinervia in the United States) classic C4 photosynthesis.</p> |tables= |references={{Treatment/Reference |id=powell1978a |text=Powell, A. M. 1978. Systematics of Flaveria (Flaveriinae–Asteraceae). Ann. Missouri Bot. Gard. 65: 590–636. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Pappi usually of 2–4 scales or coroniform, rarely 0 |[[#key-0-2| > 2]] |-id=key-0-1 |1 |Pappi 0 |[[#key-0-3| > 3]] |-id=key-0-2 |2 |Leaf blades to 10–40 mm wide, bases connate-perfoliate; New Mexico, Texas |[[Flaveria chlorifolia|Flaveria chlorifolia]] |-id=key-0-2 |2 |Leaf blades 2–7 mm wide, bases weakly connate; Arizona |[[Flaveria mcdougallii|Flaveria mcdougallii]] |-id=key-0-3 |3 |Heads in tight, axillary glomerules ("receptacles" of glomerules setose) |[[Flaveria trinervia|Flaveria trinervia]] |-id=key-0-3 |3 |Heads usually in corymbiform, paniculiform, or spiciform arrays, seldom in tight, axillary glomerules ("receptacles" of glomerules not setose). |[[#key-0-4| > 4]] |-id=key-0-4 |4 |Annuals |[[#key-0-5| > 5]] |-id=key-0-4 |4 |Perennials (annuals) |[[#key-0-6| > 6]] |-id=key-0-5 |5 |Heads in scorpioid cymiform arrays; ray laminae to 1 mm; Alabama, Florida, Georgia |[[Flaveria bidentis|Flaveria bidentis]] |-id=key-0-5 |5 |Heads in corymbiform arrays; ray laminae 1.5–2.5 mm; sc, sw United States |[[Flaveria campestris|Flaveria campestris]] |-id=key-0-6 |6 |Calyculus bractlets surpassing involucres (sw coast, Florida) |[[Flaveria floridana|Flaveria floridana]] |-id=key-0-6 |6 |Calyculus bractlets shorter than involucres |[[#key-0-7| > 7]] |-id=key-0-7 |7 |Ray laminae oblong-elliptic, 2 mm; disc florets (5–)7–10; Texas |[[Flaveria brownii|Flaveria brownii]] |-id=key-0-7 |7 |Ray laminae oval to obovate-spatulate, 2–3 mm; disc florets (2–)5–7(–8); Florida |[[Flaveria linearis|Flaveria linearis]] |} </div></div><!-- -->{{#Taxon: name=Flaveria |author=Sharon C. Yarborough;A. Michael Powell |authority=Jussieu |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |illustrator=Barbara Alongi |illustration copyright=Flora of North America Association |distribution=United States;Mexico;West Indies (Greater Antilles);Central America;South America;Asia (India);Africa;Australia |reference=powell1978a |publication title=Gen. Pl., |publication year=1789 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_612.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Flaveriinae |genus=Flaveria |aggregation architecture or fragility=loose |aggregation arrangement or density=tight |blade shape=oblong-ovate;lanceolate or linear |corolla coloration=yellow;whitish;yellow |cypsela shape=linear-oblong;oblanceolate;compressed |disc-floret quantity=1;15 |disc-floret reproduction=fertile;bisexual |face pubescence=short-pubescent;glabrous |funnelform variability=equaling |glomerule architecture=corymbiform |head architecture=discoid;radiate |involucre diameter=0.5mm;2mm |involucre shape=turbinate;cylindric;turbinate;cylindric;urceolate;oblong |leaf architecture=sessile;petiolate |leaf arrangement=opposite |leaf position=cauline |lobe quantity=5 |lobe shape=deltate |margin architecture or shape=spinulose-serrate;serrate;entire |pappus duration=persistent |pappus presence=absent |pappus shape=coroniform |phyllary atypical quantity=6;9 |phyllary duration=persistent |phyllary quantity=2;6 |ray-floret architecture=pistillate |ray-floret atypical quantity=1;2 |ray-floret quantity=0;1 |ray-floret reproduction=fertile |receptacle architecture=epaleate |receptacle shape=convex |scale coloration=hyaline |scale quantity=2;4 |series quantity=1 |stem architecture=branched |stem orientation=decumbent;erect |tube height or length or size=shorter |whole-organism duration=perennial;annual |whole-organism some measurement=0cm;200cm |whole_organism growth form=subshrub |x chromosome quantity=18 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Flaveriinae]] 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 Flaveria.