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Erythranthe hardhamiae

N.S. Fraga

Santa Lucia Monkeyflower

G1Critically Imperiled Found in 1 roadless area NatureServe Explorer →
G1Critically ImperiledGlobal Rank
HighThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.894623
Element CodePDPHR01030
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderLamiales
FamilyPhrymaceae
GenusErythranthe
Concept Reference
Fraga, N.S. 2012. A revision of Erythranthe montioides and Erythranthe palmeri (Phrymaceae), with descriptions of five new species from California and Nevada, USA. Aliso 30(1):49-68.
Taxonomic Comments
Fraga (2012) finds and describes Erythranthe hardhamiae as a species, distinct from E. palmeri sensu Thompson (2012) in Baldwin et al. (2012).
Conservation Status
Rank MethodLegacy Rank calculation - Biotics v1
Review Date2020-02-25
Change Date2013-07-29
Edition Date2020-02-25
Edition AuthorsTreher (2020)
Threat ImpactHigh
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences1 - 5
Rank Reasons
Erythranthe hardhamiae is endemic to California in the Coast and Inner Coast ranges (Monterey and San Luis Obispo Counties). Only a couple of occurrences have been visited in the last 20 years. Threats to this species include grazing, road maintenance, non-native plant species, and development. There are two occurrences on private land. Field surveys should be prioritized for this species to confirm presence or absences of plants, abundance, direct threats, and habitat conditions.
Range Extent Comments
Erythranthe hardhamiae is endemic to California and found in the Coast and Inner Coast ranges (Monterey and San Luis Obispo Counties).
Occurrences Comments
The number of extant sites is not known but potentially six based on herbarium collections. Two occurrences are based on collections from 1960 and one other location has not been relocated (mapped as best guess based on available information) (CNDDB 2020, Fraga 2012).
Threat Impact Comments
Threats to this species include grazing, road maintenance, non-native plant species, and development. There are two occurrences on private land.
Ecology & Habitat

Habitat

It grows in "sandy soils in openings of chaparral, and in sand-filled crevices of sandstone outcrops" at elevations of 300 to 500 meters (Fraga 2012).

Reproduction

Based on floral morphology, this species is an outcrosser (Fraga 2012).
Terrestrial Habitats
Shrubland/chaparral
Other Nations (1)
United StatesN1
ProvinceRankNative
CaliforniaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentRestricted (11-30%)Extreme - seriousHigh (continuing)
2 - Agriculture & aquacultureRestricted (11-30%)Moderate - slightHigh (continuing)
2.3 - Livestock farming & ranchingRestricted (11-30%)Moderate - slightHigh (continuing)
4 - Transportation & service corridorsRestricted (11-30%)Extreme - moderateHigh (continuing)
4.1 - Roads & railroadsRestricted (11-30%)Extreme - moderateHigh (continuing)
8 - Invasive & other problematic species, genes & diseasesLarge (31-70%)Moderate - slightHigh (continuing)
8.1 - Invasive non-native/alien species/diseasesLarge (31-70%)Moderate - slightHigh (continuing)

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Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (1)
California (1)
AreaForestAcres
Chalk PeakLos Padres National Forest7,472
References (4)
  1. Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, eds. 2012. The Jepson manual: vascular plants of California. 2nd edition. University of California Press, Berkeley, CA. 1568 pp.
  2. California Natural Diversity Database (CNDDB). 2020. RareFind Version 5.2.14. California Department of Fish and Game, Sacramento.
  3. Flora of North America Editorial Committee (FNA). 2019. Flora of North America north of Mexico. Vol. 17: Magnoliophyta: Tetrachondraceae to Orobanchaceae. Oxford Univ. Press, New York. xxiv + 737 pp.
  4. Fraga, N.S. 2012. A revision of <i>Erythranthe montioides</i> and <i>Erythranthe palmeri </i>(Phrymaceae), with descriptions of five new species from California and Nevada, USA. Aliso 30(1):49-68.