View source for Sidalcea nelsoniana

{{Treatment/ID
|accepted_name=Sidalcea nelsoniana
|accepted_authority=Piper
|publications={{Treatment/Publication
|title=Proc. Biol. Soc. Wash.
|place=32: 41. 1919
|year=1919
}}
|common_names=Nelson’s checkerbloom
|special_status={{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Malvaceae;Malvaceae subfam. Malvoideae;Sidalcea;Sidalcea nelsoniana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Malvaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Malvaceae subfam. Malvoideae]]</div><div class="higher-taxon"><small>genus</small>[[Sidalcea]]</div><div class="higher-taxon"><small>species</small>[[Sidalcea nelsoniana]]</div></div>
|volume=Volume 6
|mention_page=page 320, 323, 324, 328, 330, 351
|treatment_page=page 346
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, 0.4–1 m, often glaucous, with thick, woody taproot and lateral rhizomes to 500 mm. <b>Stems</b> clustered, erect, base decumbent-ascending, solid or ± hollow in age, usually ± glaucous distally, glabrous or sparsely hirtellous, hairs short, appressed, simple. <b>Leaves</b> basal and cauline; stipules sometimes deciduous, lanceolate to ovate, (4–)7–9(–14) × (1.2–)3–4 mm; petioles of proximal leaves 18–37 cm, 3–5 times as long as blades, distal 5–20 cm, to 1/2–1 times as long as blades; blades: basal reniform to rounded, unlobed and marginally deeply crenate or very shallowly palmately 5–7-lobed, 6–20 × 6–20 cm, base cordate, apex rounded; cauline deeply 5–9-lobed, lobes linear-elliptic to oblong-elliptic, margins usually entire, sometimes toothed, surfaces finely, sparsely hairy, hairs mostly simple. <b>Inflorescences</b> erect, spiciform, proximally open, distally dense, otherwise calyces not conspicuously overlapping except sometimes in bud, branched, 20+-flowered, proximalmost flowers spaced usually to 1 cm apart, not leafy-bracted, elongate, not 1-sided, 10–20 cm; bracts single, purple, mm, hairy; anthers white; stigmas (6 or)7 or 8. <b>Schizocarps</b> 4–5 mm diam.; mericarps (6 or)7 or 8, 2 mm, roughened, sparsely glandular-puberulent apically, sides finely reticulate to faintly rugose, sometimes also on back, to nearly smooth, not pitted, mucro 0.5–1 mm. <b>Seeds</b> 1.5 mm. <b>2n</b> = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering (May–)Jun–Jul(–Sep).
|habitat=Open fields, meadows, fencerows, remnant prairies
|elevation=(40–)100–600(–1300) m
|distribution=Oreg.;Wash.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Sidalcea nelsoniana</i> is uncommon and persists generally in degraded habitats. It resembles <i>S. campestris</i> and <i>S. virgata</i>, with similar ranges, but is generally less hairy and has a smaller, usually purplish calyx. It has been listed as endangered in Washington and as threatened in Oregon; the number of populations and individuals has greatly declined as a result of land development. It is found in the Willamette Valley area from Multnomah and Washington to Benton and Linn counties in Oregon, and in Cowlitz and Lewis counties in Washington.</p><!--
--><p><i>Sidalcea nelsoniana</i> is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sidalcea nelsoniana
|authority=Piper
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Malvaceae
|phenology=Flowering (May–)Jun–Jul(–Sep).
|habitat=Open fields, meadows, fencerows, remnant prairies
|elevation=(40–)100–600(–1300) m
|distribution=Oreg.;Wash.
|reference=None
|publication title=Proc. Biol. Soc. Wash.
|publication year=1919
|special status=Conservation concern;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V6/V6_626.xml
|subfamily=Malvaceae subfam. Malvoideae
|genus=Sidalcea
|species=Sidalcea nelsoniana
}}<!--

-->[[Category:Treatment]][[Category:Sidalcea]]