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|Family: Hypericaceae||View Description||Dichotomous Key|
|Genus: Hypericum||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Hypericum perforatum L. subsp. perforatum
Habit: Perennial herb 3--12 dm, taprooted. Stem: erect, many from base; sterile axillary branches generally 2--10 cm. Leaf: 1.5--2.5 cm, narrowly oblong; margins rolled under, black-dotted; lower surface conspicuously clear-dotted. Inflorescence: flowers generally 25--100 per stem. Flower: sepals 4--5 mm, lanceolate, acuminate, black- and clear-dotted; petals 8--12 mm, +- oblong, densely black-gland-dotted, bright yellow, twisting, drying in age; stamens in 3 clusters, anthers black-dotted; styles 4--6 mm. Fruit: 7--8 mm, unlobed. Seed: +- 1 mm, brown.
Ecology: Open, disturbed areas in many plant communities; Elevation: 6--1980 m. Bioregional Distribution: NW, CaR, n&c SN, ScV (uncommon s SN, CW, PR, MP); Distribution Outside California: to eastern North America; native to Europe. Toxicity: TOXIC to livestock. Flowering Time: May--Aug Note: 3 other subspecies in Europe, Asia.
Unabridged Note: Antibiotic, antidepressant properties. Compound hypericin inhibits HIV.
eFlora Treatment Author: Robert E. Preston & Jennifer Talbot
Jepson Online Interchange
Previous taxon: Hypericum mutilum subsp. mutilum
Next taxon: Hypericum scouleri
Citation for this treatment: Robert E. Preston & Jennifer Talbot 2017. Hypericum perforatum subsp. perforatum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=91766, accessed on March 23, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 23, 2017.