Taxon Report

Thelypteris puberula (Baker) C. Morton var. sonorensis A. R. Smith

Sonoran maiden fern

Print Report

Taxon Summary

Thelypteris puberula var. sonorensis is a synonym of Pelazoneuron puberulum (Baker) A. R. Sm. & S. E. Fawc. var. sonorense (A. R. Sm.) A. R. Sm. & S. E. Fawc..

Classification


Scientific Name:	Thelypteris puberula (Baker) C. Morton var. sonorensis A. R. Smith
Common Name:	Sonoran maiden fern
Family:
Element Code:	PPTHE05192
USDA Plants Symbol:
Synonyms/Other Names:	Pelazoneuron puberulum (Baker) A. R. Sm. & S. E. Fawc. var. sonorense (A. R. Sm.) A. R. Sm. & S. E. Fawc.

Ecology and Life History


Lifeform:
Blooming Period:
Elevation:	- (-)
General Habitats:
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:
Global Rank:	G5T4
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	27
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	1
Fair (C)	2
Poor (D)	0
None (X)	0
Unknown (U)	23

Location


California Endemic: False
California Counties and Islands: Name (Code)

Quads: Name (Quad Code)

Threat List Data from the CNDDB


Threat List Total:	3
EOs with Threat Listed:	Total EOs	% of EOs
	4	15 %
Non-native plant impacts	2	7%
Over-collecting/poaching	1	3%
Surface water diversion	1	3%

Notes




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 5 December 2025].