Roadless Areas
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Symphyotrichum greatae

(Parish) Nesom

Greata's Aster

G2Imperiled Found in 9 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.148173
Element CodePDASTE80U0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusSymphyotrichum
Synonyms
Aster greataeParish
Concept Reference
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.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-03-29
Change Date2016-03-29
Edition Date2016-03-29
Edition AuthorsBittman, R., rev. R. Bittman (2016)
Threat ImpactMedium
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Endemic to the San Gabriel Mountains. There are 56 mapped occurrences, though 3 are confirmed extirpated, and 38 are historical. Threatened by development, trail use, recreation, and weeds.
Range Extent Comments
Endemic to southern California.
Occurrences Comments
There are 56 mapped occurrences, though 3 are confirmed extirpated, and 38 are historical (CNDDB 2016).
Threat Impact Comments
Several occurrences list the following threats: development, trail use, recreation, and weeds (CNDDB 2016).
Ecology & Habitat

Habitat

Moist sites in canyons. Found within a variety of plant communities, including Riparian Woodland, Chaparral, upland oak-dominated Woodland, Broadleaved Upland Forest, and Lower Montane Coniferous Forest. 300 - 2010 m.
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest - MixedWoodland - HardwoodShrubland/chaparralAlpine
Palustrine Habitats
FORESTED WETLANDRiparian
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial development———
6 - Human intrusions & disturbance———
6.1 - Recreational activities———
8 - Invasive & other problematic species, genes & diseases———
8.1 - Invasive non-native/alien species/diseases———

—

Plant Characteristics
Economic Value (Genus)No
Roadless Areas (9)
California (9)
AreaForestAcres
Arroyo SecoAngeles National Forest4,703
Fish CanyonAngeles National Forest29,886
Pleasant ViewAngeles National Forest26,395
Red MountainAngeles National Forest8,034
San Gabriel AddAngeles National Forest2,527
Strawberry PeakAngeles National Forest7,245
TuleAngeles National Forest9,861
West ForkAngeles National Forest1,169
WestforkAngeles National Forest4,407
References (7)
  1. 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)
  2. 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.
  3. California Natural Diversity Database (CNDDB). 2016. RareFind Version 5.1.1. California Department of Fish and Game, Sacramento.
  4. 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.
  5. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  6. 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.
  7. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.