December 2012 Number 1 - Utah Native Plant Society

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Utah Native Plant Society Table 2. continued Family Species/ Common Name TNC Rank Legal & UTCDC Status Abundance in CEBR Fabaceae (Leguminosae) Hydrangeaceae (Saxifragaceae) Polemoniaceae Polygonaceae Pyrolaceae (Ericaceae) Salicaceae Scrophulariaceae (Orobanchaceae) Astragalus limnocharis var. limnocharis Navajo Lake milkvetch Jamesia americana var. rosea Rosy jamesia Ipomopsis tridactyla Tushar gilia Eriogonum panguicense var. alpestre Cedar Breaks wild buckwheat Pyrola picta* White-veined wintergreen Salix arizonica Arizona willow Castilleja parvula var. revealii Reveal’s paintbrush G2T1/S1 USFS: Sensitive USFWS: former C2 Ca 4100 plants in 15.9% of sample plots G5T3/SNR Ca 100 plants in 1.1% of sample plots G5T2/S2 UTCDC: Rare Ca 2800 plants in 9.3% of sample plots G3T2T3Q/ SSYN G4G5/S1 G2G3/S2 G2/S2 USFWS: former 3C UTCDC: Taxonomic Problems 35,200-100,000 plants estimated, in 36% of sample plots UTCDC: Infrequent Not known USFS: Sensitive USFWS: former Candidate UTCDC: Rare USFS: Sensitive USFWS: former C2 16 small to medium sized clones in 3 main population clusters covering 1.06 ha Ca 500 plants, in 4.8% of sample plots *Species not surveyed in 2007-2008. Derived from Utah Department of Wildlife Resources (1998), Fertig (2009b), Fertig and Reynolds (2009), and Fertig and others (2009c). Codes: TNC rank assesses abundance and conservation priority on a scale of 1-5 (1 being extremely vulnerable and 5 being secure) for full species (G) and varieties or subspecies (T) across their entire range and within each state (S). A “?” indicates uncertainty in the rank, Q = taxonomic questions, NR = not ranked, and SYN = species is considered a synonym and not ranked under the given name. Under legal status, USFWS = US Fish and Wildlife Service. C2 = category 2 candidate (a former category used for taxa that might warrant being proposed for Threatened or Endangered status following additional research). 3C = category 3 candidates (species dropped from consideration for listing). USFS = US Forest Service. BLM = Bureau of Land Management. UTCDC status includes conservation categories adopted by the state natural heritage program to prioritize endemic and rare plant taxa (Utah Division of Wildlife Resources 1998). These categories include: Rare (plants with rangewide viability concerns), Watch (regional endemics without rangewide viability concerns), Peripheral (rare or uncommon in Utah, but more common rangewide), Infrequent (plants occur infrequently over western US), and Taxonomic Problems (validity of species, subspecies, or variety has been questioned). Breaks National Monument, though similar sandstone cliffs of the Straight Cliffs or Wahweap formations are present in the bottom of Ashdown Canyon. These areas were searched in 2008, but no populations were found. It is possible that the label of the specimen is erroneous and the collection was actually made in Zion National Park (Fertig and Reynolds 2009). Similarity to Other Park Floras Cedar Breaks National Monument ranks tenth out of the 14 NPS and BLM managed parklands considered in this study in both area and species richness (Table 3). As of 2008, Grand Staircase-Escalante National Monument is the largest protected area at over 761,000 ha and has the highest number of vascular plant species with 999 2 . In general, vascular plant species richness is positively correlated with total area, with the main exception being Zion National Park with the second highest number of species (991) but ranking sixth in total area. When park 2 More than 10 new species were documented in Zion National Park in 2009, allowing it to pass Grand Staircase-Escalante National Monument as the Utah parkland with the highest vascular plant species richness. See Fertig and others (2012) for updates on the flora of each NPS unit assessed in this study. 40
Calochortiana December 2012 Number 1 Table 3. Number of Vascular Plant Taxa in National Park Service and Bureau of Land Management Parks, Monuments, Historic Sites, and Recreation Areas in Utah Management Area Size (ha) Total # of Taxa # of Rare Taxa a # of Endemic Taxa # of Unique Taxa b # of Taxa per log (area) Source Arches NP 30,966 524 32 82 12 50.7 Fertig et al. 2009a, 2009c Bryce Canyon NP 14,502 587 51 71 28 61.3 Fertig and Topp 2009 Canyonlands NP 136,610 600 55 107 16 50.8 Fertig et al. 2009b, 2009c Capitol Reef NP 97,895 888 62 142 90 77.3 Fertig 2009a Cedar Breaks NM 2,491 354 24 38 63 45.3 Fertig 2009b, Fertig et al. 2009c Dinosaur NM 85,096 757 (485 in UT) Glen Canyon NRA 505,868 889 (863 in UT) 80 76 69 (UT) 66.7 Fertig 2009c, Fertig et al. 2009c 60 176 73 (UT) 67.7 Hill 2005, Spence 2005 Golden Spike NHS 1,107 149 6 6 20 21.3 Fertig 2009d, Fertig et al. 2009c Grand Staircase- Escalante NM 761,070 999 142 193 68 73.8 Fertig 2005 & unpublished data Hovenweep NM 318 340 (240 in UT) c 17 31 6 59.0 Fertig 2009e Natural Bridges NM 3,009 428 21 72 6 53.4 Fertig 2009f Rainbow Bridge NM 65 224 12 33 4 53.7 Fertig 2010b Timpanogos Cave NM 101 235 8 15 39 50.9 Fertig and Atwood 2009 Zion NM 59,900 991 189 133 199 90.1 Fertig and Alexander 2009 a Derived from Utah Division of Wildlife Resources (1998) B Defined as species found in only one of the 14 parklands considered here c Erroneously reported as 214 taxa in Utah in Fertig (2009e) 41
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Pot Score Min Score Trend Threat In
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December 2012 Number 1 - Utah Native Plant Society

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