Taxon Report

Dedeckera eurekensis Rev. & J.T. Howell

July gold

Print Report


© 2007 Steve Matson

  Classification
Scientific Name:
 Dedeckera eurekensis Rev. & J.T. Howell
Common Name:
 July gold
Family: Polygonaceae
Element Code: PDPGN06010
USDA Plants Symbol: DEEU
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial deciduous shrub
Blooming Period: May-Aug May-Aug
Elevation: 1215-2200 (3985-7220)
General Habitats: Mojavean desert scrub
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.3
Global Rank: G3
State Rank:
 S3
State List: CR
Fed List: None
Other Status: BLM_S; SB_BerrySB; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 29
Element Occurrence Ranks:
   Excellent (A) 6
   Good (B) 7
   Fair (C) 0
   Poor (D) 1
   None (X) 0
   Unknown (U) 15

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Craig Canyon (3611767), Dry Mountain (3611785), Hanging Rock Canyon (3711726), Last Chance Range SE (3711715), Last Chance Range SW (3711716), Laws (3711843), New York Butte (3611768), Pat Keyes Canyon (3611778), Poleta Canyon (3711833), Saline Peak (3611786)

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
12 41 %
Mining 6 20%
ORV activity 5 17%
Non-native plant impacts 4 13%
Other 2 6%
Road/trail construction/maint. 2 6%
Grazing 1 3%
Recreational use (non-ORV) 1 3%

Notes
Reproductive capabilities appear extremely limited, and no juvenile plants or seedlings currently known. Possibly threatened by vehicles and non-native plants. See Brittonia 28:245-251 (1976) for original description, Madroño 28(2):86-87 (1981) and 32(2):122-123 (1985) for range extension information, and Phytologia 66(3):238-241 (1989) for taxonomic treatment.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 7 January 2025].