Heterotheca monarchensis
York, Shevock & Semple
Sequoia False Goldenaster
G2ImperiledGlobal Rank
High - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.128604
Element CodePDAST4V0U0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusHeterotheca
Concept ReferenceKartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Taxonomic CommentsHeterotheca monarchensis was described in 1996 (Semple 1996).
Conservation Status
Rank MethodExpertise without calculation
Review Date2013-08-28
Change Date2013-08-28
Edition Date2000-09-15
Edition AuthorsMacBryde, Bruce, rev. A. Tomaino (2010)
Threat ImpactHigh - medium
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank ReasonsHeterotheca monarchensis is known from California in one area of the southern Sierra Nevada in Fresno County, where it is common very locally. Invasive plant species are a threat.
Range Extent CommentsEndemic to Kings River Canyon in northeastern Fresno County, California.
Occurrences CommentsThere are two populations separated by more than a half mile (D. York, pers. comm., 2010).
Threat Impact CommentsA major threat is invasive plant species, particularly Bromus madritensis ssp. rubens (red brome) (D. York, pers. comm., 2010). A potential threat is the building of a dam in this area of Kings River. Dam proposals have occurred in the past (D. York, pers. comm., 2010). The area is difficult to access which provides some protection from human impacts.
Ecology & Habitat
Habitat
Southwest and southeast exposures on limestone ridges in cracks, ledges and flats; also in coarse, sandy flats at the base of limestone cliffs (Semple 1996). Associated limestone community dominated by Bromus madritensis ssp. rubens, Cercocarpus intricatus, C. betuloides var. betuloides, C. ledifolius var. intermontanus, Garrya flavescens, Pinus monophylla and Yucca whipplei; 1100 - 1850 m (Semple 1996).
Terrestrial HabitatsForest/WoodlandWoodland - ConiferBare rock/talus/screeCliff
Other Nations (1)
United StatesN2
| Province | Rank | Native |
|---|
| California | S2 | Yes |
Roadless Areas (3)
California (3)
| Area | Forest | Acres |
|---|
| Agnew | Sequoia National Forest | 9,561 |
| Kings River | Sierra National Forest | 52,999 |
| Monarch | Sierra National Forest | 697 |
References (10)
- CalFlora. 2005. Information on California plants for education, research and conservation. Berkeley, California: The CalFlora Database [web application]. Available: http://www.calflora.org/. (Accessed 2005)
- California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
- California Native Plant Society (CNPS). 2010. Inventory of Rare and Endangered Plants (online edition, v7-10a). California Native Plant Society. Sacramento, CA. Available at http://www.cnps.org/inventory (Accessed Jan. 26, 2010).
- California Natural Diversity Database (CNDDB). 2008. Data on area of occupancy and range. October 2008. California Department of Fish and Game, Sacramento.
- California Natural Diversity Database (CNDDB). 2010. RareFind Version 3.1.0 with dataset 1/4/2010 downloaded from http://www.dfg.ca.gov/biogeodata/cnddb/rf_ftpinfo.asp. California Department of Fish and Game, Sacramento.
- Flora of North America Editorial Committee (FNA). 2006b. Flora of North America north of Mexico. Vol. 20. Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford Univ. Press, New York. xxii + 666 pp.
- Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
- Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
- Semple, J.C. 1996. A Revision of Heterotheca sect. Phyllotheca (Nutt.) Harms (Compositae: Astereae): The Prairie and Montane Goldenasters of North America. University of Waterloo Biology Series No. 37. University of Waterloo, Waterloo, Ontario.
- York, D. 2001. Discovering the endemic plants of Kings River Canyon. Fremontia 29(2): 3-6. [http://www.cnps.org/cnps/publications/fremontia/Fremontia_Vol29-No2.pdf]