Jepson Flora Project: Jepson Interchange    

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

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



Michael Nee

Annual to shrub
Leaves generally simple, generally alternate, generally petioled; stipules 0; blade entire to deeply lobed
Inflorescence various
Flower bisexual; calyx lobes generally 5; corolla ± radial, cylindric to rotate, lobes generally 5; stamens 5, alternate corolla lobes; ovary superior, generally 2-chambered, style 1
Fruit: berry or capsule, 2–5-chambered
Genera in family: 75 genera, 3000 species: worldwide, especially ± tropical; many alien weeds in CA; many cultivated for food, drugs, or ornamental (potato, tomato, peppers, tobacco, petunia); many TOXIC.



Annual to shrub or vine, often glandular, sometimes prickly
Leaves alternate to subopposite, often unequal, entire to deeply pinnately lobed
Inflorescence: panicle or umbel-like, often 1-sided
Flower: calyx ± bell-shaped; corolla ± rotate, white to purple; anthers free, > filaments, oblong or tapered, opening by 2 pores or short slits near tip; ovary 2-chambered, style 1, stigma head-like
Fruit: berry, generally spheric (or dry, capsule-like)
Seeds many, compressed, generally reniform
Species in genus: ± 1500 species: worldwide, especially tropical Am
Etymology: (Latin: quieting, from narcotic properties)
Reference: [Symon 1981 J Adelaide Bot Gard 4:1–367]
Many cultivated for food (including potato, S. tuberosum ), ornamental; many TOXIC.


S. douglasii Dunal

Perennial or subshrub < 20 dm, much-branched; hairs generally simple, < 1 mm, ± curved, white
Leaf 1–9 cm, ovate, entire to coarsely and irregularly toothed
Inflorescence generally umbel-like
Flower: calyx ± 2 mm; corolla ± 10 mm wide, deeply lobed, white with greenish spots at base; anthers 2.5–4 mm; style 4–5 mm, puberulent below
Fruit 6–9 mm diam
Seed 1.2–1.5 mm
Chromosomes: n=12
Ecology: Dry scrub, woodland
Elevation: < 1000 m.
Bioregional distribution: s North Coast, Tehachapi Mountain Area, Central Western California, Southwestern California, Mojave Desert
Distribution outside California: n Mexico
Flowering time: Most of year

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