Polytrichum commune (Haircap moss)

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

About 2" x 1.75". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

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

About .5" x .5". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

8/7/2013 · Amos Kendall Conservation Land, Dunstable, Massachusetts
≈ 8 × 5" (19 × 13 cm)

About 0.75" x 0.75". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

8/12/2009 · Pearl Hill State Park, Townsend, Massachusetts
≈ 11 × 7" (27 × 18 cm)

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

8/7/2013 · Amos Kendall Conservation Land, Dunstable, Massachusetts
≈ 8 × 5" (19 × 13 cm)

Polytrichum commune description by Thomas H. Kent, last updated 16 Jul 2020.

7/15/2020 · Cathance River Nature Preserve Trails, Highland Green, Topsham, Maine
≈ 10 × 6" (24 × 16 cm)

7/28/2013 · Andres Institute of Art, Big Bear Mountain, Brookline, New Hampshire
≈ 8 × 7" (19 × 16 cm)

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

About 3" x 3.5". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

8/7/2013 · Amos Kendall Conservation Land, Dunstable, Massachusetts
≈ 10 × 7" (25 × 16 cm)

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

7/12/2015 · Mt. Kearsarge, Wilmot/Warner, New Hampshire
≈ 10 × 7" (25 × 16 cm)

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

About 3" x 3". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

About 2" x 1.75". · 12/12/2020 · Townsend State Forest, Townsend, Massachusetts ID is uncertain

8/7/2013 · Amos Kendall Conservation Land, Dunstable, Massachusetts
≈ 10 × 7" (25 × 16 cm)

Range:

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