Taxon Report

Nemacladus inyoensis Morin & T.J.Ayers

Badger Flat threadplant

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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:

Ecology and Life History


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

Conservation Status


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

Occurrence Data from the CNDDB


Total Occurrences:	15
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	15

Location


California Endemic: True
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)

Threat List Data from the CNDDB


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

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:

Selected References

CRPR List Addition on 2020-07-21

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].