Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

HYPERICACEAE

ST. JOHN'S WORT FAMILY

Jennifer Talbot

Annual, perennial herb, shrub, tree
Leaves simple, cauline, opposite or whorled; stipules 0; blade often with black dots or embedded clear glands
Inflorescence: cyme, panicle, or flower solitary, terminal or axillary
Flower bisexual, radial; sepals persistent, generally 5, often fused at base, overlapping; petals generally 5, free; stamens generally many, free or ± fused into 3–5 clusters; pistil 1, ovary superior, chambers 1–3, placentas generally axile, style branches 3
Fruit: capsule, generally septicidal
Seeds many, small
Genera in family: 10 genera, 400 species: worldwide.

HYPERICUM

Annual, perennial herb, shrub, glabrous
Leaf sessile, ± gland-dotted
Inflorescence: generally cyme, generally terminal, bracted
Flower: sepals 5; petals 5, deciduous or persistent, yellow; anthers sometimes black-dotted; ovary chambers 1 or 3, placentas 3, axile or parietal and projecting into chamber
Species in genus: 350 species: worldwide
Etymology: (Greek name)

Native

H. concinnum Benth.

GOLD-WIRE

Perennial from woody caudex
Stems many, 15–30 cm, slender, wiry
Leaf 15–40 mm, linear to lanceolate, not clasping, generally folded, sparsely black-dotted
Inflorescence: flowers generally 3–9 per stem
Flower: sepals 5–9 mm, lanceolate, acute, margin black-dotted, glabrous; petals 10–15 mm, ± obovate, golden-yellow, margins black-dotted; stamens many, in 3 clusters, 4 filaments per cluster fused at base, others free; styles ± 10 mm, spreading
Fruit 6–7 mm, 3-lobed
Seed ± 1.5 mm, dark greenish brown
Ecology: Dry, shrubby slopes
Elevation: 100–1000 m.
Bioregional distribution: Northwestern California, High Cascade Range, n&c Sierra Nevada, Sacramento Valley, San Francisco Bay Area.

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