Roadless Areas
Home/Species/ Few-flower Bleedinghearts

Dicentra pauciflora

S. Wats.

Few-flower Bleedinghearts

G3Vulnerable (G3G4) Found in 28 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.134056
Element CodePDFUM04080
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPapaverales
FamilyPapaveraceae
GenusDicentra
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2023-12-22
Change Date2023-12-22
Edition Date2023-12-22
Edition AuthorsBroaddus, Lynn (1991), rev. L. Morse (1995), rev. C. Nordman (2023).
Threat ImpactMedium
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 300
Rank Reasons
Dicentra pauciflora occurs in the western United States, mainly in the Sierra Nevada of California and also in Western Transverse Ranges of southern California, the Klamath Range, and Cascade Range of northern California and southwestern Oregon. It is estimated that there are between 81 and 300 occurrences, and the total population size is more than 2500 plants. It occurs in California on the Los Padres, Plumas, and Sequoia National Forests (including within the Monarch Wilderness and Dome Land Wilderness), and on the Six Rivers National Forests, and Yosemite National Park. Threats include recreation impacts and the effects of long-term or extreme drought, such as may be exacerbated by climate change.
Range Extent Comments
Dicentra pauciflora occurs in the western United States, mainly in the Sierra Nevada of California and also in Western Transverse Ranges of southern California, the Klamath Range, and Cascade Range of northern California and southwestern Oregon. Range extent was estimated to be 131,400 square kilometers, using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1992 and 2023 (CCH2 2023, FNA 1997, GBIF 2023, iNaturalist 2023, Jepson Flora Project 2023, NatureServe 2023, SEINet 2023).
Occurrences Comments
By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1992 and 2023, it is estimated that there are between 81 and 300 occurrences of Dicentra pauciflora rangewide (CCH2 2023, GBIF 2023, iNaturalist 2023, NatureServe 2023, SEINet 2023).
Threat Impact Comments
Threats include recreation impacts and the effects of long-term or extreme drought, such as may be exacerbated by climate change.
Ecology & Habitat

Habitat

Dicentra pauciflora occurs in openings and gravelly areas, in coniferous forests, on volcanic and granitic soils, in mountains, especially the Sierra Nevada, at 1,200 to 3,000 meters elevation (FNA 1997, Jepson Flora Project 2023).

Reproduction

Flowering June to July (Jepson Flora Project 2023). Seeds have an elaiosome, so they may be dispersed by ants (FNA 1997).
Terrestrial Habitats
Forest - ConiferWoodland - Conifer
Other Nations (1)
United StatesN3
ProvinceRankNative
OregonS1Yes
CaliforniaSNRYes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbanceRestricted (11-30%)Serious or 31-70% pop. declineHigh (continuing)
6.1 - Recreational activitiesRestricted (11-30%)Serious or 31-70% pop. declineHigh (continuing)
11 - Climate change & severe weatherLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
11.2 - DroughtsLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (28)
California (28)
AreaForestAcres
Bonanza KingShasta-Trinity National Forest16,402
Bucks LakePlumas National Forest680
Castle Crags AShasta-Trinity National Forest113
Castle Crags BShasta-Trinity National Forest1,619
ChanchelullaShasta-Trinity National Forest3,915
Chips CreekLassen National Forest29,089
Chips CreekPlumas National Forest12,940
Dinkey LakesSierra National Forest34,171
East GirardShasta-Trinity National Forest27,894
East YubaTahoe National Forest17,968
Jennie LakeSequoia National Forest2,388
KangarooKlamath National Forest40,617
Lake EleanorShasta-Trinity National Forest397
Little French CShasta-Trinity National Forest11,529
Middle ForkPlumas National Forest29,278
MosesSequoia National Forest22,077
Mt. EddyShasta-Trinity National Forest7,232
North Fork American RiverTahoe National Forest38,495
Orleans Mtn.Klamath National Forest49,090
PattisonShasta-Trinity National Forest29,299
RinconSequoia National Forest54,610
RussianKlamath National Forest21,771
SiskiyouKlamath National Forest54,039
Siskiyou BSix Rivers National Forest18,871
Slate Mtn.Sequoia National Forest12,299
SnoozerKlamath National Forest23,414
Weaver BallyShasta-Trinity National Forest829
West GirardShasta-Trinity National Forest37,516
References (8)
  1. CCH2 Portal. 2023. Consortium of California Herbaria. Online. Available: https//:www.cch2.org/portal/index.php (accessed 2023).
  2. Flora of North America Editorial Committee (FNA). 1997. Flora of North America north of Mexico. Vol. 3. Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York. xxiii + 590 pp.
  3. Global Biodiversity Information Facility (GBIF). 2023. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2023).
  4. iNaturalist. 2023. Online. Available: https://www.inaturalist.org (accessed 2023).
  5. Jepson Flora Project (eds.) 2023. Jepson eFlora. Online. Available: https://ucjeps.berkeley.edu/eflora/ (accessed 2023).
  6. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  7. NatureServe. 2023. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  8. Southwest Environmental Information Network (SEINet). 2023. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2023).