View source for Tiarella ← Tiarella 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=Tiarella |accepted_authority=Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=1: 405. 1753 |year=1753 }}{{Treatment/Publication |title=Gen. Pl. ed. |place=5, 190. 1754 , }} |common_names=Foamflower;tiarelle;Latin tiara;turban;and |basionyms= |synonyms= |hierarchy=Saxifragaceae;Tiarella |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Saxifragaceae]]</div><div class="higher-taxon"><small>genus</small>[[Tiarella]]</div></div> |etymology=ella, diminutive, alluding to capsule shape |volume=Volume 8 |mention_page=page 43, 44, 45, 46, 85, 108, 115 |treatment_page=page 114 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>(often evergreen), rhizomatous, sometimes stoloniferous; caudex creeping, scaly. <b>Flowering</b> stems erect, usually leafless, rarely with 1–2 leafy bracts, 10–70 cm, short to long glandular-stipitate. <b>Leaves</b> in basal rosette and, sometimes, cauline, simple or 3-foliolate; stipules present; petiole short to long stipitate-glandular (hairs usually denser distally, gland-tipped); blade cordate or broadly ovate, lobed, base cordate, margins crenate to dentate, apex acute, abaxial surface stipitate-glandular along veins, adaxial surface stipitate-glandular, sometimes appressed, hairs uniformly scattered; venation palmate. <b>Inflorescences</b> racemes (sometimes with paniculate branches at base) or panicles, terminal from axillary buds in rosette, 15–70-flowered, bracteate. <b>Flowers</b> radially symmetric or somewhat bilaterally symmetric; hypanthium barely adnate to ovary proximally, 0.2–0.9 mm free from ovary, white or pinkish, (campanulate); sepals 5, whitish or pinkish, (ovate to lanceolate, apex acute or obtuse, glandular-stipitate abaxially, glabrous adaxially); petals 5, white or pinkish to purplish; nectary disc absent or inconspicuous; stamens 10; filaments linear; ovary superior, 1-locular, carpels connate, unequal; placentation parietal; styles 2, (tapering); stigmas 2. <b>Capsules</b> 2-winged (beaked), unequally valvate, abaxial carpel 1.5–2 times longer than adaxial carpel, (papery, each wing 5–10-veined). <b>Seeds</b> black, shiny, ellipsoid or ovoid, (base truncate), puncticulate; (funicular appendage absent). <b>x</b> = 7.</span><!-- -->{{Treatment/Body |distribution=North America;Asia. |discussion=<p>Species 3 (2 in the flora).</p><!-- --><p>Intergeneric hybrids between Tiarella cordifolia and species of Heuchera and Mitella have been documented. Tiarella is placed within the Heuchera group of the Saxifragaceae. Based on cpDNA and other cytological traits, this is one of the best-defined groups of the Saxifragaceae. Chloroplast DNA restriction site data for the Heuchera group suggest the group as being paraphyletic. Tiarella cordifolia is known from eastern North America and T. trifoliata is known from western North America. Tiarella polyphylla D. Don occurs in Asia in the Himalayas through western and central China to Japan and Taiwan. Tiarella is used as a diuretic as well as for suppression of urine production and in treating kidney stones.</p> |tables= |references={{Treatment/Reference |id=lakela1937a |text=Lakela, O. 1937. A monograph of the genus Tiarella L. in North America. Amer. J. Bot. 24: 344–351. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Inflorescences racemes; leaves simple; cauline leaves absent or 1; petals oblanceolate to elliptic, apex 3-toothed; e North America. |[[Tiarella cordifolia|Tiarella cordifolia]] |-id=key-0-1 |1 |Inflorescences panicles; leaves simple or trifoliolate; cauline leaves 1-5; petals linear or subulate, apex attenuate; w North America. |[[Tiarella trifoliata|Tiarella trifoliata]] |} </div></div><!-- -->{{#Taxon: name=Tiarella |author=Suneeti Jog |authority=Linnaeus |rank=genus |parent rank=family |synonyms= |basionyms= |family=Saxifragaceae |distribution=North America;Asia. |reference=lakela1937a |publication title=Sp. Pl.;Gen. Pl. ed. |publication year=1753; |special status= |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V8/V8_225.xml |genus=Tiarella }}<!-- -->[[Category:Treatment]][[Category:Saxifragaceae]] Templates used on this page: Template:Saxifragaceae (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 Tiarella.