Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Blytt's Andreaea Moss - Andreaea blyttii

Status Under Review
Native Species

Global Rank: G5
State Rank: SU
(see State Rank Reason below)

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
Distribution data in BIOTICS had Distribution Confidence as "Reported but unconfirmed" with no explanatory notes (Spribille report). FNA 2014 does not show this in Montana.
General Description
Plant: Small to large, usually in dense tuft. Red-black, blackish, or green-brown. Stems erect and irregularly branched. Rhizoids at base of plant. Central strand is absent.

Leaf: Leaf curved or second to straight, wide-spreading to squarrose, short-lanceolate, and widest near base. Apex oblique or symmetric. Costa is absent. Margins entire.

Leaf Cells: Basal laminal cells short- to long-rectangular. Marginal cells are rounded-quadrate to short-rectangular, with thicker-walls, often pitted, and straight. Median laminal cells quadrate to short-rectangular with lumens rounded, and rectangular or irregularly stellate. Median laminal cells in 1-layer with occasional patches of 2-layers. Laminal papillae usually present, large, and whitish.

Seta/Capsule: Setas are essentially absent. Capsules are erect, elliptic, and open with 4 lateral valves.

Diagnostic Characteristics
Species is highly variable and usually identified by the process of elimination. Plants identified as A. alpestris differ by having straight leaves with low papillae, but treated as a high elevation form of A. rupestris in the FNAv27.

Species Range

Range Comments
Greenland; Canada: NU, QC; United States: AK; nw Europe. (Zander, R. H. 2007. Andreaeaceae. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 18+ vols. New York and Oxford. Vol. 27, p. 104.)

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Usually in wet places on neutral to acidic boulders, cliffs, and walls. Low to moderate elevations.

Reproductive Characteristics
Cladautoicous or autoicous.

  • Literature Cited AboveLegend:   View Online Publication
    • Elliott, J.C. and A.K. Pipp. 2018. A Checklist of Montana Mosses (1880-2018). December 20th. Montana Natural Heritage Program, Helena, Montana. 73 pp.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lawton, E. 1971. Keys for the Identification of the Mosses on the Pacific Northwest. Reprinted from 'Moss Flora of the Pacific Northwest'. Published as Supplement No. 2 of the Journal of the Hattori Botanical Laboratory. Nichinan, Miyazaki, Japan. 66 pp.
    • Lawton, E. 1971. Moss Flora of the Pacific Northwest. Hattori Botanical Laboratory. Japan: Yamabuki-cho, Shinjuku-ku, Tokyo. 362 pages plus appendices.
  • Web Search Engines for Articles on "Blytt's Andreaea Moss"
Login Logout
Citation for data on this website:
Blytt's Andreaea Moss — Andreaea blyttii.  Montana Field Guide.  .  Retrieved on , from