Chaenactis douglasii var. douglasii (Hook.) Hook. & Arn.

Sokoloff, Paul C., Freebury, Colin E., Hamilton, Paul B. & Saarela, Jeffery M., 2016, The " Martian " flora: new collections of vascular plants, lichens, fungi, algae, and cyanobacteria from the Mars Desert Research Station, Utah, Biodiversity Data Journal 4, pp. 8176-8176: 8176

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Chaenactis douglasii var. douglasii (Hook.) Hook. & Arn.


Chaenactis douglasii var. douglasii (Hook.) Hook. & Arn.  


Type status: Other material. Occurrence: recordNumber: 291; recordedBy: Sokoloff, Paul C.; preparations: Silica gel collection; Taxon: scientificName: Chaenactisdouglasii(Hook.)Hook. & Arn.var.douglasii; kingdom: Plantae; phylum: Angiosperms; class: Eudicots; order: Asterales; family: Asteraceae; genus: Chaenactis; specificEpithet: douglasii; infraspecificEpithet: douglasii; taxonRank: Variety; scientificNameAuthorship: (Hook.) Hook. & Arn.; Location: continent: North America; country: United States of America; countryCode: USA; stateProvince: Utah; county: Wayne County; municipality: Hanksville; locality: Mars Desert Research Station ; verbatimLocality: Approx. 200 m past fork on Cow Dung Road, down eastern fork, 1.9 km northeast of Mars Desert Research Station; verbatimElevation: 1381 m; verbatimLatitude: 38°25'3.2"N; verbatimLongitude: 110°46'29.7"W; coordinateUncertaintyInMeters: 50; Identification: identifiedBy: Sokoloff, Paul C.; dateIdentified: 2015; Event: verbatimEventDate: November 23, 2014; habitat: Artemisia-dominated desert scrub; Record Level: institutionID: CMN; collectionID: CAN 607472; collectionCode: CAN; basisOfRecord: Preserved Specimen GoogleMaps  


Found in desert shrub communities alongside the ATV trails north of MDRS, this widespread species was not recorded previously for the nearby San Rafael Swell ( Harris 1983), though it is known to occur in nearby Capitol Reef National Park ( Coles et al. 2009), and in the Four Corners region further southeast ( Heil and O'Kane 2003). Though Welsh et al. (1993) did not recognize varieties, our specimen would be considered C. douglasii var. douglasii   following Morefield (2006).

Supplemental File: CAN 607472 (Suppl. material 30).