View source for Osmadenia ← Osmadenia 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=Osmadenia |accepted_authority=Nuttall |publications={{Treatment/Publication |title=Trans. Amer. Philos. Soc., n. s. |place=7: 391. 1841 |year=1841 }} |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Madiinae;Osmadenia |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 Madiinae]]</div><div class="higher-taxon"><small>genus</small>[[Osmadenia]]</div></div> |etymology=Greek osma, odor, and aden, gland, alluding to strong-scented, glandular herbage |volume=Volume 21 |mention_page=page 256, 276, 280, 291 |treatment_page=page 269 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Annuals,</b> 5–40 cm (self-incompatible; herbage strongly scented).</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation"><b>Stems </b>erect (branched, branchlets relatively many, commonly spreading, threadlike, densely glandular, scabrous to shaggy-hairy).</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="">alternate;</span> <span class="statement" id="st-d0_s4" data-properties="leaf arrangement;leaf architecture">sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade arrangement or course or shape;margin architecture or shape;face pubescence;face architecture or function or pubescence">blades linear, margins entire, faces hispidulous and glandular (proximally ± ciliate or shaggy-hairy).</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or arrangement;array architecture or fragility;array architecture"><b>Heads </b>radiate, in loose, cymiform arrays.</span> <span class="statement" id="st-d0_s7" data-properties="tack-gland presence"><b>Peduncular </b>bracts with tack-glands 0 (strigillose, strongly glandular, margins often proximally pectinate, ciliate).</span> <span class="statement" id="st-d0_s8" data-properties="involucre shape;involucre diameter"><b>Involucres </b>ovoid, 2–4 mm diam.</span> <span class="statement" id="st-d0_s9" data-properties="phyllary life cycle;phyllary quantity;series quantity"><b>Phyllaries </b>falling, 3–5 in 1 series (each partly enveloping a ray cypsela, apices acute to attenuate).</span> <span class="statement" id="st-d0_s10" data-properties="receptacle prominence or shape;receptacle pubescence;receptacle architecture"><b>Receptacles </b>flat, glabrous, paleate (paleae persistent, in 1 series between rays and discs, connate, forming cups, distinct apices acute, often apiculate).</span> <span class="statement" id="st-d0_s11" data-properties="ray-floret quantity;ray-floret architecture;ray-floret reproduction"><b>Ray-</b>florets 3–5, pistillate, fertile;</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration">corollas wholly or mostly white (laminae 3-lobed, lobes sometimes each with prominent medial red blotch, overall often fading reddish, sinuses ± equaling laminae).</span> <span class="statement" id="st-d0_s13" data-properties="disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 3–10, bisexual, fertile;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration;lobe height or length or size;medial blotch prominence;medial blotch coloration;tube coloration;tube height or length or size;lobe quantity;lobe shape">corollas usually wholly white, sometimes lobes each with prominent medial red blotch or reddish overall, tubes shorter than throats, lobes 5, deltate (anthers ± dark purple; styles glabrous proximal to branches).</span> <span class="statement" id="st-d0_s15" data-properties="cypsela shape;apex architecture or shape;beak position"><b>Cypselae </b>(rays) ± obcompressed (± 3-angled, abaxial sides usually broadly 2-faced, angles between those faces usually 90+°, adaxial sides nearly flat), apices beaked, beaks off-center, faces rugose, glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="face relief;face pubescence;face shape;face pubescence">or (discs) narrowly clavate, appressed-hairy;</span> <span class="statement" id="st-d0_s17" data-properties="pappus presence;pappus quantity;pappus shape;scale quantity;scale height or length or size;scale shape">pappi (rays) 0, or (discs) of 4–5 lance-attenuate to aristate scales alternating with 4–5 shorter, ± fimbriate scales.</span> <span class="statement" id="st-d0_s18" data-properties="scale arrangement;x chromosome quantity">x = 9.</span><!-- -->{{Treatment/Body |distribution=Calif.;nw Mexico |discussion=<p>Species 1.</p> |tables= |references={{Treatment/Reference |id=carr1977a |text=Carr, G. D. 1977. A cytological conspectus of the genus Calycadenia (Asteraceae): An example of contrasting modes of evolution. Amer. J. Bot. 64: 694–703. }} }}<!-- --><!-- -->{{#Taxon: name=Osmadenia |author=Robert L. Carr;Gerald D. Carr |authority=Nuttall |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |distribution=Calif.;nw Mexico |reference=carr1977a |publication title=Trans. Amer. Philos. Soc., n. s. |publication year=1841 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_661.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Madiinae |genus=Osmadenia |apex architecture or shape=beaked |array architecture=cymiform |array architecture or fragility=loose |beak position=off-center |blade arrangement or course or shape=linear |corolla coloration=white;white |cypsela shape=obcompressed |disc-floret quantity=3;10 |disc-floret reproduction=fertile;bisexual |face architecture or function or pubescence=glandular |face pubescence=appressed-hairy;glabrous;hispidulous |face relief=rugose |face shape=clavate |head architecture or arrangement=radiate |involucre diameter=2mm;4mm |involucre shape=ovoid |leaf architecture=sessile |leaf arrangement=alternate |leaf position=cauline |lobe height or length or size=shorter |lobe quantity=5 |lobe shape=deltate |margin architecture or shape=entire |medial blotch coloration=red |medial blotch prominence=prominent |pappus presence=absent |pappus quantity=4;5 |pappus shape=lance-attenuate;aristate |phyllary life cycle=falling |phyllary quantity=3;5 |ray-floret architecture=pistillate |ray-floret quantity=3;5 |ray-floret reproduction=fertile |receptacle architecture=paleate |receptacle prominence or shape=flat |receptacle pubescence=glabrous |scale arrangement=alternating |scale height or length or size=shorter |scale quantity=4;5 |scale shape=fimbriate |series quantity=1 |stem orientation=erect |tack-gland presence=absent |tube coloration=reddish |tube height or length or size=shorter |whole-organism duration=annual |whole-organism some measurement=5cm;40cm |x chromosome quantity=9 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Madiinae]] 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 Osmadenia.