Diphasiastrum sitchense

Diphasiastrum sitchense, the Sitka clubmoss, is a pteridophyte species native to northern North America and northeastern Asia. It is a terrestrial herb spreading by stolons running on the surface or the ground or just slightly below the surface. Leaves are appressed, broadly lanceolate, up to 3.2 mm (0.13 inches) long. Strobili are solitary on the ends of shoots.^[3] It is known from every province in Canada, plus the US States of Alaska, Oregon, Washington, Idaho, Montana, Maine, New Hampshire, Vermont, and New York.^[4][5] It is also found in Greenland, St. Pierre and Miquelon, Yukon, Japan, and the Kamchatka Peninsula of Asiatic Russia.^[2] It can be found in alpine meadows, open rocky barrens, and coniferous woodlands.^[6][7]

Diphasiastrum sitchense
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Lycophytes
Class:	Lycopodiopsida
Order:	Lycopodiales
Family:	Lycopodiaceae
Genus:	Diphasiastrum
Species:	D. sitchense
Binomial name
Diphasiastrum sitchense (Rupr.) Holub 1975
Synonyms[1][2]
Lycopodium sabinifolium subsp. sitchense (Rupr.) Calder & Roy L. Taylor Lycopodium sabinifolium var. sitchense (Rupr.) Fernald Lycopodium sabinaefolium subsp. sitchense (Rupr.) Calder & Roy L. Taylor Lycopodium sabinaefolium var. sitchense (Rupr.) Fernald Lycopodium sitchense Rupr. 1845 Diphasium sitchense (Rupr.) A. & D. Löve