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(First upload on February 24 2014. Last on August 12 2020) [ 日本語 | English ]

Potentilla L. (キジムシロ) Ezonomitsumotosou (エゾノミツモトソウ, 蝦夷水源草), Norwegian cinquefoil, or rough cinquefoil Lifeform: annual, biennial or short-lived perennial forb Distribution: native to Europe and perhaps North America (now widespread in the world, including Hokkaido and Alaska) Hokkaido Blue List: A3, probably introduced in Meiji Era Habitat: disturbed open lands, such as roadsides, grasslands and thickets Leaf: 3-5 leaflets (5 at the base)

Flower: petal < calyx Stipule: base gamophyllous with petiole Inflorescence: axillary bracteate cymes ssp. norvegica ⇔ P. cryptotaeniae Maxim. (ミツモトソウ) Lifeform: perennial Flower: petal ≈ calyx Leaf: three leaflets throughout Stipule: middle and upper parts gamophyllous with petiole ssp. monspeliensis (L.) Asch. et Graebn. (Hultén 1968), Alaska

Potentilla norvegica in the Northern Hemisphere

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ssp. monspeliensis

1 2 3
[1-3] at a roadside near the campus of University of Alaska Fairbanks on August 17 2013.

ssp. norvegica

4 5 6
7 8 9
[4-6] in a waste land, N14/W3, North Ward, Sapporo, on August 11 2015. [7] on a sandbar along Toyohira River, Sapporo, on July 14 2020. [8/9] along a paved road in N24/E2, East Ward, Sapporo, on August 19 2016.