View source for Simsia ← Simsia 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=Simsia |accepted_authority=Persoon |publications={{Treatment/Publication |title=Syn. Pl. |place=2: 478. 1807 |year=1807 }} |common_names=Bush sunflower |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Helianthinae;Simsia |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 Helianthinae]]</div><div class="higher-taxon"><small>genus</small>[[Simsia]]</div></div> |etymology=For John Sims, 1749–1831, British physician and botanist |volume=Volume 21 |mention_page=page 135 |treatment_page=page 140 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> perennials, or subshrubs [shrubs], 20–400 cm. <b>Stems</b> erect or ascending [decumbent], sparingly to freely branched. <b>Leaves</b> cauline; opposite (proximal) or alternate [whorled]; petiolate (petioles often ± winged, often with expanded bases, those bases sometimes fused to form nodal “discs”) [sessile]; blades 3-nerved from bases, mostly deltate to ovate [linear], sometimes 3- [5-]lobed[pinnatifid], bases cordate to cuneate, ultimate margins entire or toothed, faces hirsute, hispid, pilose, puberulent, scabrous, or scabro-hispid [sericeous], often gland-dotted or ± stipitate-glandular to glandular-puberulent. <b>Heads</b> radiate [discoid], borne singly or in 2s or 3s, or in tight to loose, corymbiform [paniculiform] arrays. <b>Involucres</b> campanulate [ovoid-campanulate to urceolate], 5–16[–22] mm diam. <b>Phyllaries</b> persistent, [11–]13–43[–66] in 2–4 series (tightly appressed to broadly reflexed, unequal to subequal). <b>Receptacles</b> low-convex, paleate (paleae conduplicate, ± enclosing cypselae). <b>Ray</b> florets [0–]5–21[–45], styliferous and sterile; corollas orange-yellow [lemon-yellow, pink, purple, or white]. <b>Disc</b> florets [12–]13–154[–172], bisexual, fertile; corollas concolorous with rays (usually turning purple apically), tubes (often glandular-hairy) shorter than throats, lobes 5, ± triangular (anthers black, yellow, or yellow proximally and bronze or purple distally; style branches relatively slender, apices sometimes attenuate). <b>Cypselae</b> flattened, thin-margined [thickened, biconvex] (shoulders minute to conspicuous, faces glabrous or hairy); pappi 0, or fragile or readily falling, of 2 ± subulate scales [plus 4–12 shorter scales]. <b>x</b> = 17.</span><!-- -->{{Treatment/Body |distribution=sw United States;Mexico;West Indies (Jamaica);Central America;South America. |discussion=<p>Species 20 (2 in the flora).</p> |tables= |references={{Treatment/Reference |id=spooner1990a |text=Spooner, D. M. 1990. Systematics of Simsia (Compositae–Heliantheae). Syst. Bot. Monogr. 30: 1–90. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Perennials or subshrubs (roots fusiform-thickened); ray florets 8–21, corollas light orange-yellow (abaxial faces often brown- or purple-lined, or wholly brown or purple); disc florets (26–)90–154; anthers usually yellow, rarely black |[[Simsia calva|Simsia calva]] |-id=key-0-1 |1 |Annuals (rarely persisting, taprooted or fibrous rooted); ray florets 5–10, corollas orange-yellow; disc florets 13–27; anthers yellow proximally, usually purple to bronze distally |[[Simsia lagasceiformis|Simsia lagasceiformis]] |} </div></div><!-- -->{{#Taxon: name=Simsia |author=David M. Spooner |authority=Persoon |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |distribution=sw United States;Mexico;West Indies (Jamaica);Central America;South America. |reference=spooner1990a |publication title=Syn. Pl. |publication year=1807 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_339.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae |genus=Simsia }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Helianthinae]] 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 Simsia.