View source for Stanleya

{{Treatment/ID
|accepted_name=Stanleya
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Gen. N. Amer. Pl.
|place=2: 71. 1818
|year=1818
}}
|common_names=Prince’s plume
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Thelypodieae;Stanleya
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Thelypodieae]]</div><div class="higher-taxon"><small>genus</small>[[Stanleya]]</div></div>
|etymology=For Edward Smith Stanley, 1775–1851, British statesman and ornithologist
|volume=Volume 7
|mention_page=page 230, 232, 245, 246
|treatment_page=page 695
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> perennials, shrubs, or subshrubs; (base usually woody); not scapose; glabrous or pubescent. <b>Stems</b> usually erect, rarely ascending, unbranched or branched. <b>Leaves</b> cauline and, sometimes, basal; petiolate or sessile; basal rosulate, petiolate, blade margins entire, lyrately lobed or 1- or 2-pinnatifid; cauline blade (base sometimes auriculate or amplexicaul), margins entire or dentate to pinnatifid. <b>Racemes</b> considerably elongated in fruit. <b>Fruiting</b> pedicels horizontal, divaricate, or divaricate-ascending, slender. <b>Flowers</b>: sepals spreading to reflexed, oblong-linear or linear, lateral pair not saccate basally; petals usually yellow or whitish, rarely white or yellow-orange, obovate, orbicular, oblong, linear, filiform, or oblanceolate, claw distinctly differentiated from blade (claw glabrous or papillose); stamens (exserted), equal; filaments not dilated basally, (often papillose basally); anthers linear, (strongly spirally coiled after dehiscence); lateral nectar glands annular, median present or absent, confluent with lateral ones. <b>Fruits</b> long-stipitate, linear, often torulose, terete or latiseptate; valves each with prominent midvein, glabrous; replum rounded; septum complete; ovules 22–70 per ovary; style obsolete or distinct (to 1.7 mm); stigma capitate, entire. <b>Seeds</b> uniseriate, plump, not winged, usually oblong, rarely ovoid; seed coat (obscurely reticulate), slightly mucilaginous when wetted; cotyledons accumbent to incumbent. <b>x</b> = 14.</span><!--

-->{{Treatment/Body
|distribution=w;c United States.
|discussion=<p>Species 7 (7 in the flora).</p><!--
--><p>Both R. C. Rollins (1993) and N. H. Holmgren (2005b) reported n = 12 and 2n = 24 for various species of <i>Stanleya</i>. However, those counts, all reported previously by Rollins (1939c), are erroneous; no species of the genus has numbers deviating from n = 14 or 28.</p><!--
--><p>All species of <i>Stanleya</i> are well-defined, and interspecific hybridization has not yet been reported. One species, <i>S. pinnata</i>, is a hyperaccumulator of selenium and is a good indicator for the presence of this element in soils. Poisoning of livestock results from their feeding on large quantities of plants of this species.</p>
|tables=
|references={{Treatment/Reference
|id=rollins1939c
|text=Rollins, R. C. 1939c. The cruciferous genus Stanleya. Lloydia 2: 109–127.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Cauline leaves sessile, blade bases auriculate to sagittate
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Cauline leaves petiolate, blade bases not auriculate or sagittate
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Annuals or biennials (without caudex); racemes dense; sepals 6-12 mm; petals linear to filiform, 0.5-1.5 mm wide, margins crisped; fruiting pedicels 10-20(-26) mm.
|[[Stanleya confertiflora|Stanleya confertiflora]]
|-id=key-0-2
|2
|Perennials (with caudex); racemes loose; sepals 12-18 mm; petals narrowly oblanceolate, 1-3 mm wide, margins usually erose, rarely subentire and crisped; fruiting pedicels 4-9(-12) mm.
|[[Stanleya viridiflora|Stanleya viridiflora]]
|-id=key-0-3
|3
|Basal leaf blades: surfaces densely tomentose; fruiting pedicels 11-22 mm; petals with glabrous claws; fruits flattened.
|[[Stanleya tomentosa|Stanleya tomentosa]]
|-id=key-0-3
|3
|Basal leaf blades: surfaces usually glabrous, rarely sparsely pubescent; fruiting pedicels 3-11(-15) mm; petals with pubescent claws (except S. elata); fruits terete or subterete
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Cauline leaf blades: margins usually entire, rarely dentate proximally
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Cauline leaf blades: margins often pinnatisect, pinnatifid, 2-pinnatifid, lyrate-pinnatifid, or runcinate
|[[#key-0-6| > 6]]
|-id=key-0-5
|5
|Petals linear, 0.3-1 mm wide, claws glabrous; ovules 46-70 per ovary; filaments 5-13 mm; Arizona, California, s, w Nevada.
|[[Stanleya elata|Stanleya elata]]
|-id=key-0-5
|5
|Petals oblanceolate to oblong, 2-3 mm wide, claws pubescent; ovules 10-38 per ovary; filaments 11-28 mm; Colorado, Kansas, Nevada, sw Texas, Utah, Wyoming.
|[[Stanleya pinnata|Stanleya pinnata]]
|-id=key-0-6
|6
|Biennials; petals orbicular to broadly obovate, (2.5-)3-6 mm wide; fruits suberect to ascending, slightly curved inward.
|[[Stanleya albescens|Stanleya albescens]]
|-id=key-0-6
|6
|Perennials; petals oblanceolate or oblong, 0.8-3 mm wide; fruits usually spreading or divaricate, rarely ascending, sometimes curved downward
|[[#key-0-7| > 7]]
|-id=key-0-7
|7
|Cauline leaf blades: margins sometimes 2-pinnatifid; sepals 6.5-10 mm; petals 5-12 mm; filaments glabrous basally; gynophores 4-11 mm; fruits torulose, tortuous.
|[[Stanleya bipinnata|Stanleya bipinnata]]
|-id=key-0-7
|7
|Cauline leaf blades: margins not 2-pinnatifid; sepals 9-16 mm; petals 10-20 mm; filaments pilose basally; gynophores 7-28 mm; fruits smooth, not tortuous.
|[[Stanleya pinnata|Stanleya pinnata]]
|}
</div></div><!--

-->{{#Taxon:
name=Stanleya
|author=Ihsan A. Al-Shehbaz
|authority=Nuttall
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Brassicaceae
|distribution=w;c United States.
|reference=rollins1939c
|publication title=Gen. N. Amer. Pl.
|publication year=1818
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_1197.xml
|tribe=Brassicaceae tribe Thelypodieae
|genus=Stanleya
}}<!--

-->[[Category:Treatment]][[Category:Brassicaceae tribe Thelypodieae]]