View source for Deutzia

{{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-d0_s0" data-properties="whole_organism growth form"><b>Shrubs.</b></span> <span class="statement" id="st-d0_s1" data-properties="stem orientation"><b>Stems </b>erect to spreading.</span> <span class="statement" id="st-d0_s2" data-properties="bark relief;sheet coloration;sheet coloration;sheet coloration"><b>Bark </b>exfoliating in grayish, brownish, or reddish sheets or flakes.</span> <span class="statement" id="st-d0_s3" data-properties="branch orientation;branch orientation;branch orientation;branch orientation;branch orientation;branch orientation"><b>Branches </b>erect, ascending, spreading, or arching;</span> <span class="statement" id="st-d0_s4" data-properties="trichome arrangement or shape;trichome architecture">twigs with stellate and simple trichomes.</span> <span class="statement" id="st-d0_s5" data-properties="leaf duration;leaf duration;leaf arrangement"><b>Leaves </b>deciduous or semideciduous, opposite;</span> <span class="statement" id="st-d0_s6" data-properties="petiole presence">petiole present;</span> <span class="statement" id="st-d0_s7" data-properties="blade shape;blade shape;blade shape;blade shape;blade shape;blade growth form or texture">blade lanceolate, elliptic, or ovate, herbaceous, margins serrulate to crenate-denticulate, plane;</span> <span class="statement" id="st-d0_s8" data-properties="margin shape;margin shape;margin architecture or shape">venation pinnate.</span> <span class="statement" id="st-d0_s9" data-properties="inflorescence position or structure subtype;cyme arrangement;panicle architecture;raceme architecture;flower architecture or arrangement or growth form"><b>Inflorescences </b>terminal, corymbose cymes, panicles, or racemes, usually (2–) 5–60-flowered, rarely flowers solitary;</span> <span class="statement" id="st-d0_s10" data-properties="peduncle presence;peduncle presence">peduncle present or absent.</span> <span class="statement" id="st-d0_s11" data-properties="pedicel presence"><b>Pedicels </b>present.</span> <span class="statement" id="st-d0_s12" data-properties="flower reproduction"><b>Flowers </b>bisexual;</span> <span class="statement" id="st-d0_s13" data-properties="perianth position;androecium position">perianth and androecium epigynous;</span> <span class="statement" id="st-d0_s14" data-properties="hypanthium fusion;hypanthium shape;hypanthium shape;hypanthium architecture or shape">hypanthium completely adnate to ovary, campanulate or ovoid, not ribbed in fruit;</span> <span class="statement" id="st-d0_s15" data-properties="sepal duration;sepal quantity;sepal orientation;sepal shape;sepal pubescence;sepal pubescence;sepal pubescence">sepals deciduous, 5, erect, triangular to broadly ovate, glabrous or abaxially short-hairy or stellate-pubescent;</span> <span class="statement" id="st-d0_s16" data-properties="petal quantity;petal arrangement;petal arrangement;petal orientation;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal shape;base shape;surface pubescence;surface pubescence">petals 5 [10 in some cultivars], valvate or imbricate, spreading, white, pink, or purplish, elliptic to oblong, base clawed, surfaces glabrous or hairy;</span> <span class="statement" id="st-d0_s17" data-properties="stamen quantity;whorl quantity">stamens 10, in 2 whorls;</span> <span class="statement" id="st-d0_s18" data-properties="all fusion;all shape;all shape;all shape;all shape;all shape;all shape;all shape;all shape;all shape;all shape;all shape;all shape;apex shape;apex shape">filaments distinct, dorsiventrally flattened or terete, gradually or abruptly tapered medially or filiform, apex 2-lobed or not lobed;</span> <span class="statement" id="st-d0_s19" data-properties="anther shape">anthers globose;</span> <span class="statement" id="st-d0_s20" data-properties="pistil architecture">pistil 3–5-carpellate, ovary completely inferior, 3–5-locular;</span> <span class="statement" id="st-d0_s21" data-properties="ovary position;ovary architecture or structure in adjective form;ovary placentation;ovary arrangement;ovary arrangement">placentation usually axile proximally and parietal distally, sometimes strictly parietal;</span> <span class="statement" id="st-d0_s22" data-properties="style duration;style atypical quantity;style quantity;style fusion">styles persistent, 3 (–4), distinct.</span> <span class="statement" id="st-d0_s23" data-properties="capsule shape;capsule pubescence or texture;capsule dehiscence"><b>Capsules </b>hemispheric, cartilaginous, dehiscence acropetally septicidal along septum at base of fruit and also apically.</span> <span class="statement" id="st-d0_s24" data-properties=""><b>Seeds </b>10–20 per locule, dark-brown, ellipsoid.</span> <span class="statement" id="st-d0_s25" data-properties="seed quantity;seed coloration;seed shape;x chromosome quantity">x = 13.</span><!--

-->{{Treatment/Body
|distribution=Mexico;Asia (China);Asia (Himalaya);Asia (Japan);Asia (Korea);Pacific Islands (Philippines)
|introduced=true
|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 Deutzia 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 Deutzia 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 Deutzia identification. He listed seven species and 22 cultivars, including nine cultivars of D. scabra.</p><!--
--><p>In cultivation, deutzias may spread by suckers; several species have escaped and become marginally naturalized. M. L. Fernald (1950) reported that Deutzia gracilis and D. scabra 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 D. scabra 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);Asia (Himalaya);Asia (Japan);Asia (Korea);Pacific Islands (Philippines)
|introduced=true
|reference=None
|publication title=Nov. Gen. Pl.,
|publication year=1781
|special status=Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_799.xml
|genus=Deutzia
|all fusion=distinct
|all shape=filiform;or;tapered;or;terete;flattened;filiform;or;tapered;or;terete;flattened
|androecium position=epigynous
|anther shape=globose
|apex shape=not lobed;2-lobed
|bark relief=exfoliating
|base shape=clawed
|blade growth form or texture=herbaceous
|blade shape=ovate;elliptic;ovate;elliptic;lanceolate
|branch orientation=arching;spreading;arching;spreading;ascending;erect
|capsule dehiscence=septicidal
|capsule pubescence or texture=cartilaginous
|capsule shape=hemispheric
|cyme arrangement=corymbose
|flower architecture or arrangement or growth form=solitary
|flower reproduction=bisexual
|hypanthium architecture or shape=not ribbed
|hypanthium fusion=adnate
|hypanthium shape=ovoid;campanulate
|inflorescence position or structure subtype=terminal
|leaf arrangement=opposite
|leaf duration=semideciduous;deciduous
|margin architecture or shape=pinnate
|margin shape=plane;serrulate;crenate-denticulate
|ovary architecture or structure in adjective form=3-5-locular
|ovary arrangement=parietal;parietal
|ovary placentation=axile
|ovary position=inferior
|panicle architecture=(2-)5-60-flowered
|pedicel presence=absent
|peduncle presence=absent;absent
|perianth position=epigynous
|petal arrangement=imbricate;valvate
|petal coloration=purplish;pink;purplish;pink;white
|petal orientation=spreading
|petal quantity=5
|petal shape=elliptic;oblong
|petiole presence=absent
|pistil architecture=3-5-carpellate
|raceme architecture=(2-)5-60-flowered
|seed coloration=dark-brown
|seed quantity=10;20
|seed shape=ellipsoid
|sepal duration=deciduous
|sepal orientation=erect
|sepal pubescence=stellate-pubescent;short-hairy;glabrous
|sepal quantity=5
|sepal shape=triangular;broadly ovate
|sheet coloration=reddish;brownish;grayish
|stamen quantity=10
|stem orientation=erect;spreading
|style atypical quantity=3;4
|style duration=persistent
|style fusion=distinct
|style quantity=3
|surface pubescence=hairy;glabrous
|trichome architecture=simple
|trichome arrangement or shape=stellate
|whole_organism growth form=shrub
|whorl quantity=2
|x chromosome quantity=13
}}<!--

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