View source for Deutzia ← Deutzia 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=Deutzia |accepted_authority=Thunberg |publications={{Treatment/Publication |title=Nov. Gen. Pl., |place=19. 1781 |year=1781 }} |special_status={{Treatment/ID/Special_status |code=I |label=Introduced }} |basionyms= |synonyms= |hierarchy=Hydrangeaceae;Deutzia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hydrangeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Deutzia]]</div></div> |etymology=For Johann van der Deutz, ca. 1743–1784, Dutch merchant and patron of Carl Peter Thunberg |volume=Volume 12 |mention_page=page 462, 463 |treatment_page=page 471 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs.</b> Stems erect to spreading. <b>Bark</b> exfoliating in grayish, brownish, or reddish sheets or flakes. <b>Branches</b> erect, ascending, spreading, or arching; twigs with stellate and simple trichomes. <b>Leaves</b> deciduous or semideciduous, opposite; petiole present; blade lanceolate, elliptic, or ovate, herbaceous, margins serrulate to crenate-denticulate, plane; venation pinnate. <b>Inflorescences</b> terminal, corymbose cymes, panicles, or racemes, usually (2–)5–60-flowered, rarely flowers solitary; peduncle present or absent. <b>Pedicels</b> present. <b>Flowers</b> bisexual; perianth and androecium epigynous; hypanthium completely adnate to ovary, campanulate or ovoid, not ribbed in fruit; sepals deciduous, 5, erect, triangular to broadly ovate, glabrous or abaxially short-hairy or stellate-pubescent; petals 5 [10 in some cultivars], valvate or imbricate, spreading, white, pink, or purplish, elliptic to oblong, base clawed, surfaces glabrous or hairy; stamens 10, in 2 whorls; filaments distinct, dorsiventrally flattened or terete, gradually or abruptly tapered medially or filiform, apex 2-lobed or not lobed; anthers globose; pistil 3–5-carpellate, ovary completely inferior, 3–5-locular; placentation usually axile proximally and parietal distally, sometimes strictly parietal; styles persistent, 3(–4), distinct. <b>Capsules</b> hemispheric, cartilaginous, dehiscence acropetally septicidal along septum at base of fruit and also apically. <b>Seeds</b> 10–20 per locule, dark brown, ellipsoid. <b>x</b> = 13.</span><!-- -->{{Treatment/Body |distribution=Mexico;Asia (China;Himalaya;Japan;Korea);Pacific Islands (Philippines). |discussion=<p>Species ca. 60 (3 in the flora).</p><!-- --><p>A. J. Rehder (1940) recognized 23 species (including eight named hybrids), 27 varieties, and about 27 cultivars of <i>Deutzia</i> growing mostly at the Arnold Arboretum. L. H. Bailey et al. (1976) listed taxa only in the horticultural trade and cited 34 species and 36 cultivars that had been listed in the previous two decades. M. A. Dirr (1998) reported that <i>Deutzia</i> has lost favor as an ornamental over the years. He noted that identification of species, particularly cultivars, borders on the impossible, and nothing is clear-cut in the world of <i>Deutzia</i> identification. He listed seven species and 22 cultivars, including nine cultivars of <i>D. scabra</i>.</p><!-- --><p>In cultivation, deutzias may spread by suckers; several species have escaped and become marginally naturalized. M. L. Fernald (1950) reported that <i>Deutzia gracilis</i> and <i>D. scabra</i> were beginning to spread to thickets and roadsides; there is no evidence that either species has become widely naturalized. H. A. Gleason and A. Cronquist (1991) noted that <i>D. scabra</i> rarely escapes from cultivation.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Inflorescences corymbose cymes; petals broadly ovate or suborbiculate, imbricate; filaments terete, filiform. |[[Deutzia parviflora|Deutzia parviflora]] |-id=key-0-1 |1 |Inflorescences usually racemes or panicles, sometimes flowers solitary (D. gracilis); petals narrowly elliptic to oblong or oblong-lanceolate, valvate; filaments dorsiventrally flattened, narrowly oblong or subulate. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Leaf blade abaxial surfaces glabrous or glabrate; inflorescences glabrous. |[[Deutzia gracilis|Deutzia gracilis]] |-id=key-0-2 |2 |Leaf blade abaxial surfaces densely stellate-pubescent; inflorescences stellate-pubescent. |[[Deutzia scabra|Deutzia scabra]] |} </div></div><!-- -->{{#Taxon: name=Deutzia |author=Ronald L. McGregor† |authority=Thunberg |rank=genus |parent rank=family |synonyms= |basionyms= |family=Hydrangeaceae |distribution=Mexico;Asia (China;Himalaya;Japan;Korea);Pacific Islands (Philippines). |introduced=true |reference=None |publication title=Nov. Gen. Pl., |publication year=1781 |special status=Introduced |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_799.xml |genus=Deutzia }}<!-- -->[[Category:Treatment]][[Category:Hydrangeaceae]] Templates used on this page: Template:Hydrangeaceae (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/ID/Special status (view source) Template:Treatment/Publication (view source) Return to Deutzia.