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due to the following reasons: "This species is limited to the coastal tideland and marshes along the
Pacific Northwest from as far south as Douglas County, Oregon to Vancouver Island, British Columbia, Canada. A recent collection in Alaska suggests a range extension. Outlying occurrences are found in
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Oregon and
British Columbia with the majority of the global population in Washington state. Total estimated occurrences are between 21–100 with plant numbers estimated as over 3000+ but probably more like 10,000+. There do not appear to be any imminent threats to this species."
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is a taprooted perennial herb that grows from thick and stubby rhizomes. It has a basal rosette of toothed basal leaves. Stems are erect and hollow, and typically tinged purple. Flowers are five-petaled and numerous, typically fifty or more per plant, forming in branched
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needs wet soil so its range is limited to tidal marches and flats that experience inundation at low elevations. Its range is scattered, ranging from
Southern British Columbia to the mouth of the
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atop stems. After flowering, seed fruits are developed. They are capsular, with 5 to 10 chambers, each containing one seed.
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243:(1853–1942), who was a professor at the University of Oregon.
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263:. Its range follows the coastline; it grows in
251:Occurs in coastal areas spanning from southern
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384:: CS1 maint: multiple names: authors list (
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364:. Vancouver, BC: Lone Pine. p. 318.
271:. Extremely rare in Oregon, uncommon in
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306:. This plant is considered at risk by
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360:Pojar, Mackinnon, Jim, Andy (1994).
239:. It is named for Oregon botanist
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728:urn:lsid:ipni.org:names:235903-2
275:, and rare in British Columbia.
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362:Plants of the Pacific Northwest
787:NatureServe vulnerable species
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241:Dr. Louis Forniquet Henderson
812:Taxa named by Sereno Watson
807:Flora of Washington (state)
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229:Henderson's checker-mallow
16:Species of flowering plant
802:Flora of British Columbia
227:known by the common name
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70:Scientific classification
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454:Vrilakas, Sue (2000).
430:"Sidalcea Hendersonii"
428:Vrilakas, Sue (2000).
404:"sidalcea hendersonii"
329:"Sidalcea Hendersonii"
231:. It is native to the
456:"Sidalcea Hendrsonii"
402:Turner, Mark (2016).
491:Sidalcea hendersonii
434:NatureServe Explorer
333:NatureServe Explorer
300:Sidalcea hendersonii
284:Sidalcea hendersonii
216:Sidalcea hendersonii
201:Sidalcea hendersonii
25:Sidalcea hendersonii
183:S. hendersonii
42:Conservation status
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684:Open Tree of Life
483:Taxon identifiers
233:Pacific Northwest
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304:Umpqua River
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702:kew-2602157
645:NatureServe
580:iNaturalist
460:NatureServe
308:NatureServe
279:Description
113:Angiosperms
60:NatureServe
56:Vulnerable
781:Categories
697:Plant List
339:2018-04-07
315:References
273:Washington
235:region of
559:250101126
506:Q15383956
380:cite book
177:Species:
159:Malvaceae
83:Kingdom:
792:Sidalcea
748:VASCAN:
741:19601109
736:Tropicos
650:2.142638
637:80606791
611:11269871
598:235903-2
500:Wikidata
465:April 6,
439:April 7,
413:April 7,
207:S.Watson
170:Sidalcea
155:Family:
149:Malvales
126:Eudicots
572:3152736
295:Ecology
289:racemes
269:meadows
223:in the
165:Genus:
145:Order:
87:Plantae
58: (
710:PLANTS
689:549834
676:148919
585:168942
546:585081
520:503173
368:
253:Oregon
139:Rosids
715:SIHE4
624:21867
606:IRMNG
533:6YN84
133:Clade
120:Clade
107:Clade
94:Clade
751:6635
723:POWO
671:NCBI
632:IUCN
619:ITIS
593:IPNI
567:GBIF
515:BOLD
467:2018
441:2018
415:2018
386:link
366:ISBN
267:and
759:WFO
658:NBN
554:FNA
541:EoL
528:CoL
255:to
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
