UW Burke Herbarium species comparison

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Hypericum punctatum

Hypericum majus

greater Canadian St. John's-wort
Habit Perennial from short, leafy rhizomes, the stems upright, 1-5 dm. tall, simple or branched above.
Leaves

Leaves opposite, sessile, lanceolate to oblong, rounded, 1-3.5 cm. long, 5- to 7-nerved.
Flowers

Inflorescence of terminal cymes with small, linear bracts;

sepals 5, lanceolate, 4-7 mm. long;

petals 5, yellow, about equal to the sepals;

stamens 15-35, the filaments almost capillary, distinct;

styles 3, short.
Fruits

Capsule 3-celled.

Hypericum punctatum

Hypericum majus
Flowering time July-September
Habitat Peatlands, shores, damp sand, and cranberry farms.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Both native and introduced from eastern North America
Conservation status Sensitive in Washington (WANHP)
Sibling taxa
H. anagalloides, H. androsaemum, H. boreale, H. calycinum, H. canadense, H. ellipticum, H. maculatum, H. majus, H. mutilum, H. perforatum, H. scouleri, H. tetrapterum
H. anagalloides, H. androsaemum, H. boreale, H. calycinum, H. canadense, H. ellipticum, H. maculatum, H. mutilum, H. perforatum, H. scouleri, H. tetrapterum
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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