Taxon Report

Meesia longiseta Hedwig

long seta hump moss

Print Report

Taxon Summary

Meesia longiseta, commonly known as long seta hump moss, is a moss in the Meesiaceae that is found in California and elsewhere. It occurs within Bogs and fens, Meadows and seeps, and Upper montane coniferous forest, growing at elevations from 1750 to 3045 meters. Meesia longiseta is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Meesia longiseta Hedwig
Common Name:	long seta hump moss
Family:	Meesiaceae
Element Code:	NBMUS4L010
USDA Plants Symbol:	MELO70
Synonyms/Other Names:

Ecology and Life History


Lifeform:	moss
Blooming Period:
Elevation:	1750-3045 (5740-9990)
General Habitats:	Bogs and fens, Meadows and seeps, Upper montane coniferous forest
Microhabitat:	Carbonate
Microhabitat Details:	on soil

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 2B.3 on 2014-05-22

Occurrence Data from the CNDDB


Total Occurrences:	4
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	4

Location


California Endemic: False
California Counties and Islands: Name (Code)
Madera (MAD), Mono (MNO), Siskiyou (SIS), Tuolumne (TUO)
Quads: Name (Quad Code)
Boulder Peak (4112351), Dunderberg Peak (3811913), Mammoth Mtn. (3711961), Tioga Pass (3711983)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Easily overlooked without capsules. See Madroño 51(1):75 (2004) and 51(2):146 (2004) for CA treatment.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2014-05-22

USFS Potential Species of Conservation Concern Profile

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 February 2025].