Kalm's St. John's-wort (Hypericum kalmianum) Linnaeus, 1753

 

Synonyms: Norysca kalmiana

 

 

Hypericum kalmianum is confined to the Lower Great Lakes region in the United States and southern Canada. It grows in sandy or calcareous soils in mesic prairies, fens, dunes, sphagnum-sedge swamps, and rocky shores; 10-400 m. Small shrub, 20-60 cm in height. The leaves are oblong to liner, 3–4.5 cm long. The flowers are 20-35 mm in diameter; 5 golden-yellow petals; in terminal corymbs of 3-7. The fruit is an ovoid capsule. This species flowers from June to August.

 

		D34648 Kalm's St. John's-wort (Hypericum kalmianum) Bruce Peninsula Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
		D34647 Kalm's St. John's-wort (Hypericum kalmianum) Bruce Peninsula Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
		D34650 Kalm's St. John's-wort (Hypericum kalmianum) Bruce Peninsula Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
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