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Hypericum gymnanthum

Claspingleaf St. Johnswort

Family HypericaceaeAlso called Small-flowered St. John's wort

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Botanical line drawing (Britton & Brown, 1913)Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 535. Courtesy of Kentucky · Public domain

About

A wetland St. John's wort of the eastern United States with small five-petalled yellow flowers.

Field notes

Morphology

Grows 0.3–1 m tall. Petals are 3–6 mm long. Upper leaves are about 1.5 cm long and much larger than the lower ones.

Distribution & habitat

Florida to New York, and Guatemala; introduced to Poland. Found in sinkhole ponds, wet pine flatwoods, bogs, swales and pine savannas; the USDA rates it a facultative wetland species.

History & etymology

First formally described in 1845.

Read the full article on Wikipedia →

Habitat

Altitude
Not recorded
Altitude class
—
Native to
United States, Guatemala

Cultivation

Difficulty
Not recorded

Text adapted from Wikipedia, CC BY-SA 4.0.

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