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SOLANACEAE

NIGHTSHADE FAMILY

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.

SOLANUM

NIGHTSHADE

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.

Introduced

S. furcatum Dunal

Perennial 5–12 dm, weak or ± reclining; hairs simple, sparse, ± curved
Leaf 3–7 cm, ovate, ± entire or irregularly few-toothed
Inflorescence: axis forked; clusters 2, umbel-like
Flower: calyx 2.5–3 mm; corolla 10–18 mm wide, white to pale violet; anthers 3–3.5 mm
Fruit 5–6 mm, dark purple
Seed ± 2 mm
Chromosomes: n=36
Ecology: Open, often disturbed places
Elevation: < 200 m.
Bioregional distribution: North Coast, Central Coast, San Francisco Bay Area
Distribution outside California: Oregon, Baja California; native to S.America
Synonyms: S. gayanum (E.J. Remy) F. Phil. misapplied to CA plants

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