Sidalcea robusta
{{Short description|Species of flowering plant}}
{{Speciesbox
|image = Sidalcea robusta (5987756437).jpg
|status = G2
|status_system = TNC
|genus = Sidalcea
|species = robusta
|authority = A.Heller ex Roush{{PLANTS|id=SIRO2|taxon=Sidalcea robusta|accessdate=12 November 2015}}
}}
Sidalcea robusta is an uncommon species of flowering plant in the mallow family known by the common name Butte County checkerbloom.
Description
This rhizomatous perennial herb produces a sturdy stem which can exceed a meter in height. Sidalcea robusta is mostly hairless above with sparse hairs near the base. The leaves are divided into pointed lobes and have bristly hairs on their upper surfaces.{{Cite book |last=Nakamura |first=Gary |title=Illustrated Field Guide to Selected Rare Plants of Northern California |publisher=University of California, Agriculture and Natural Resources |year=2001 |isbn=9781879906457 |pages=322}} The inflorescence is a long, open series of flowers which can be {{convert|30|-|40|cm|abbr=on}} in length. The flowers each have five pale pink petals up to {{convert|3.5|cm|abbr=on}} long that turn yellowish as they dry.{{Cite book |last=Jepson |first=Willis |title=The Jepson Manual,Higher Plants of California |last2=Hickman |first2=James |publisher=University of California Press |year=1993 |isbn=9780520082557 |pages=767}}
Distribution
Sidalcea robusta is endemic to Butte County, California, where it is known from about 20 occurrences, including some near Chico. It is a resident of chaparral and woodland habitat in mountain foothills.
It is an Endangered species listed by the California Native Plant Society Inventory of Rare and Endangered Plants and The Nature Conservancy.[http://www.rareplants.cnps.org/detail/1125.html California Native Plant Society, Inventory of Rare and Endangered Plants (online edition, v8-02): Sidalcea robusta] . accessed 3.8.2016.[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Sidalcea+robusta The Nature Conservancy, Imperiled flora: Sidalcea robusta]
References
{{Reflist|30em}}
External links
- [http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=7584 Calflora Database: Sidalcea robusta (Butte County checkerbloom)]
- [https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=44438 Jepson Manual eFlora (TJM2) treatment of Sidalcea robusta]
- [http://plants.usda.gov/java/profile?symbol=SIRO2 USDA Plants Profile for Sidalcea robusta (Butte County checkerbloom)]
- [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Sidalcea+robusta UC CalPhotos gallery: Sidalcea robusta]
{{Taxonbar|from=Q7507998}}
Category:Endemic flora of California
Category:Natural history of the California chaparral and woodlands
Category:Natural history of Butte County, California
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