Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
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 small tree
Leaves entire
Inflorescence: raceme or panicle, terminal
Flower: calyx 5-lobed, ± enlarging, not fully enclosing fruit; corolla generally radial, generally funnel-shaped to salverform; stamens 5, equal or 1 smaller
Fruit: capsule
Seeds many, minute, angled
Species in genus: ± 60 species: generally Am; N. tabacum L. widely cultivated.
Etymology: (J. Nicot, 1530–1600, said to have introduced tobacco to Eur)
Reference: [Goodspeed 1954 Chron Bot 16:1–536]
Seriously TOXIC to livestock.


N. quadrivalvis Pursh

Annual 3–20 dm, glandular
Leaves 4–15 cm; lower leaves short-petioled, elliptic to ovate; upper leaves sessile, reduced
Inflorescence: bracts < 35 mm, ± linear
Flower: calyx 15–20 mm, 10-ridged, lobes narrowly lanceolate, 1 sometimes > tube; corolla ± salverform, white with green or violet tinge, tube 25–50 mm, limb 20–50 mm wide; stamens unequal, filaments attached at different levels above middle of tube
Fruit 15–20 mm
Ecology: Open, well-drained washes, slopes
Elevation: < 1500 m.
Bioregional distribution: California Floristic Province, uncommon in East of Sierra Nevada, Mojave Desert
Distribution outside California: to Washington, c US
Flowering time: May–Oct
Synonyms: N. bigelovii (Torr.) S. Watson
Plants from SCo with corolla limb > 50 mm wide have been called N. b var. wallacei A. Gray. Widely cultivated by w Am native people
Horticultural information: DRN, SUN: 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

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bioregional map for NICOTIANA%20quadrivalvis being generated
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)

Retrieve Jepson Interchange Index to Plant Names entry for Nicotiana quadrivalvis
Retrieve dichotomous key for Nicotiana
Overlay Consortium of California Herbaria specimen data by county on this map
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