CNPS

CNPS Rare Plant Inventory



Taxon Details

Nemacladus inyoensis

Badger Flat threadplant

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Photo of Nemacladus inyoensis
© 2019 Steve Matson 		Photo of Nemacladus inyoensis
©2010 Steve Matson 		Photo of Nemacladus inyoensis
©2019 Aaron Schusteff

Taxon Summary:

Nemacladus inyoensis, commonly known as Badger Flat threadplant, is a annual herb in the Campanulaceae that is found only in California. It occurs within Mojavean desert scrub, and Pinyon and juniper woodland, growing at elevations from 1735 to 2635 meters. Nemacladus inyoensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

  Classification

Scientific Name:
Nemacladus inyoensis Morin & T.J.Ayers
Common Name:
Badger Flat threadplant
Family: Campanulaceae
Element Code: PDCAM0F0F0
USDA Plants Symbol:
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G3
State Rank:
 S3
Other Status: BLM_S
CRPR Changes:
added to 1B.2 on 2020-07-21
Add Date: 2020-07-21
Date Edited: 2024-11-05

  Ecology and Life History

Lifeform: annual herb
Blooming Period: May-Jun
JFMAMJJASOND
Elevation:
1735 - 2635 meters
5695 - 8645 feet
General Habitats:
  • Mojavean desert scrub
  • Pinyon and juniper woodland
Microhabitat Details:
Microhabitat:
  • Carbonate
  • Flats
  • Granitic
  • Gravelly
  • Rocky
  • Sandstone
  • Scree
  • Washes

  Notes

Notes:

Discovered in 2010 by Steve Matson. Threatened by vehicles and mining; potentially threatened by road construction. See Madroño 67(1):35-60 (2020) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 1
Total EOs % of EOs
EOs with Threat Listed: 1 7 %
THREAT LIST:
Mining 1 6%

  Occurrence Data from the CNDDB

Total Occurrences: 15
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 15
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 15
Presence:
Presumed Extant 15
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Cerro Gordo Peak (3611757), Chalfant Valley (3711853), Cowhorn Valley (3711821), Deep Springs Lake (3711831), Mazourka Peak (3611881), Nelson Range (3611756), Santa Rosa Flat (3611746), Uhlmeyer Spring (3711822), Waucoba Mtn. (3711811), Waucoba Spring (3711718), Westgard Pass (3711832), Wildrose Peak (3611731)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

CNPS Status Review: CRPR List Addition on 2020-07-21

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Suggested Citation:
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 July 2025].
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