Diphasiastrum
clubmoss
4 species
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Diphasiastrum alpinumalpine clubmoss
Distribution: Occurring in the Olympic Mountains and Cascades Range in Washington; Alaska to northern Washington, east to northern Idaho, northwest Montana, and Quebec; circumboreal.
Habitat: Rocky slopes, dry heath meadows, and open conifer forests at high elevations. In Washington, often found associated with Phyllodoce, Cassiope, and Vaccinium in dry heath soils.
Origin: Native
Growth Duration: Perennial
Diphasiastrum complanatumground-cedar, trailing ground-pine
Distribution: Occurring on both sides of the Cascades crest in Washington, primarily in the northern half of the state; Alaska to Oregon, Idaho and Montana, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry, usually coniferous forests, rocky slopes and sandy openings, low to mid-elevations.
Origin: Native
Spores: Sporing structures in summer and fall
Growth Duration: Perennial
Diphasiastrum sitchenseAlaskan clubmoss, Sitka clubmoss
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon, east to Idaho and Montana, and across central Canada to northeastern U.S. and eastern Canada; also in eastern Asia from Japan north.
Habitat: Subalpine-alpine meadows and open rocky areas at mid-to high elevations in the mountains; occasionally in conifer forest or under brush.
Origin: Native
Growth Duration: Perennial
Diphasiastrum ×takedaehybrid clubmoss
Distribution: Occurring in the Cascades and Olympic Mountains in Washington; Alaska to Oregon, east to Idaho, also in far eastern Canada; Eurasia.
Habitat: Subalpine and alpine meadows.
Origin: Native
Growth Duration: Perennial