Polytrichum commune (Haircap Moss)

Polytrichum commune

Polytrichum commune Hedw.

Haircap Moss, Common Haircap Moss

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Division	Bryophyta	Mosses
Subdivision	Musci	Mosses (all 12,000 of them)
Class	Bryopsida	Mosses with arthrodontous spore capsules, which is most of them
Subclass	Bryidae	Mosses with a double peristome with alternating tooth segments
Order	Polytrichales	A group of mosses which tend to be among the larger ones, with a thickened central stem and root
Family	Polytrichaceae	A group of mosses which tend to be among the larger ones, with a thickened central stem and root
Genus	Polytrichum	From Greek poly, “many,” trichum, “hair”
Species	commune

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Polytrichum commune description by Thomas H. Kent, last updated 12 Oct 2018.

6/15/2012 · Townsend State Forest, Townsend, MA
≈ 3½ × 2½' (1.2 × 0.8 m)

About 2" x 1.75". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain

8/1/2009 · Coastal Maine Botanical Gardens, Boothbay, ME
≈ 15 × 10" (39 × 26 cm)

About .5" x .5". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain

About 0.75" x 0.75". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain

3/10/2010 · Nashua River Rail Trail, Groton, MA
≈ 6 × 4" (15 × 10 cm)

7/28/2013 · Andres Institute of Art, Brookline, NH
≈ 8 × 7" (19 × 16 cm)

6/15/2012 · Townsend State Forest, Townsend, MA
≈ 7 × 4½" (17 × 11 cm)

About 3" x 3.5". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain

6/8/2012 · Townsend Wildlife Management Area, Townsend, MA
≈ 7 × 11" (18 × 27 cm)

The two darker-colored plants have male "splash cups" on top, where sperm is produced. · 9/29/2010 · Nashua River Rail Trail, Ayer, MA
≈ 4½ × 3" (11 × 7.9 cm) ID is uncertain

About 3" x 3". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain

About 2" x 1.75". · 9/6/2018 · Townsend State Forest, Townsend, MA ID is uncertain