Taxon Report

Juncus digitatus C. Witham & Zika

finger rush

Print Report


Image by Wendy Boes

  Classification
Scientific Name:
 Juncus digitatus C. Witham & Zika
Common Name:
 finger rush
Family: Juncaceae
Element Code: PMJUN013E0
USDA Plants Symbol: JUDI3
Synonyms/Other Names:

Ecology and Life History
Lifeform: annual herb
Blooming Period: (Apr)May-Jun (Apr)May-Jun
Elevation: 660-1097 (2165-3600)
General Habitats: Cismontane woodland, Lower montane coniferous forest, Vernal pools
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G1
State Rank:
 S1
State List: None
Fed List: None
Other Status:
CRPR Changes:
  • added to 1B.1 on 2009-01-02

Occurrence Data from the CNDDB
Total Occurrences: 3
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 2

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Nevada (NEV), Shasta (SHA)
Quads: Name (Quad Code)
Grass Valley (3912121), Hagaman Gulch (4012157), Shingletown (4012148)

Threat List Data from the CNDDB

Threat List Total: 5
EOs with Threat Listed: Total EOs % of EOs
3 100 %
Altered flood/tidal/hydrologic regime 1 33%
Development 1 33%
Disking 1 33%
Mining 1 33%
Surface water diversion 1 33%

Notes
Two occurrences in SHA Co.; one occurrence is threatened by ornamental rock mining and the other is threatened by water diversion. A third occurrence in NEV Co. is threatened by development and hydrological alterations. See J. Botanical Research Institute of Texas 2(2):775-781 (2008) for original description.
Threats:
Taxonomy:

Selected References

CRPR List Addition on 2009-01-02
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].