Taxon Details

Pelazoneuron puberulum var. sonorense

Sonoran maiden fern

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Taxon Summary:

Pelazoneuron puberulum var. sonorense, commonly known as Sonoran maiden fern, is a perennial rhizomatous herb in the Thelypteridaceae that is found in California and elsewhere. It occurs within Meadows and seeps (seeps, and streams), growing at elevations from 50 to 610 meters. Pelazoneuron puberulum var. sonorense is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification

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

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5T4
State Rank:	S2
Other Status:	USFS_S
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2024-08-06

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Jan-Sep

Elevation:
50 - 610 meters
165 - 2000 feet

General Habitats:

Meadows and seeps (seeps, streams)

Microhabitat Details:

Microhabitat:

Notes

Notes:
Threats: Possibly threatened by foot traffic, recreational activities, and non-native plants.
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					27
A	B	C	D	X	U
1	1	2	0	0	23

Occurrence Status:
Historical >20 Years	21
Recent <=20 Years	6

Presence:
Presumed Extant	27
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), Baja California (BA), California (CA), Sonora, Mexico (SO)

California Counties and Islands: Name (Code)
Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD), Santa Barbara (SBA)

Quads: Name (Quad Code)
Azusa (3411728), Carpinteria (3411945), Gaviota (3412042), Glendora (3411727), Goleta (3411947), Harrison Mtn. (3411722), Mt. Wilson (3411821), Palm Springs (3311675), Pasadena (3411822), Point Dume (3411817), Santa Barbara (3411946), Santa Ynez (3412051), Tajiguas (3412041), Topanga (3411815), Tranquillon Mtn. (3412055), Triunfo Pass (3411818)

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

CNPS Name Change:	Non-Substantive Name Changes: Multiple taxa in various plant families from the Jepson eFlora revisions 8, 9, and 10
Original Description:	University of California Publications in Botany 59:91 (1971)

CNPS Rare Plant Inventory