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Key to families | Table of families and genera
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Annual to shrub. Leaf: 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, on corolla tube, alternate lobes; ovary superior, generally 2-chambered, style 1. Fruit: berry, loculicidal or septicidal capsule, [(drupe)], 2–5-chambered.
75 genera, 3000 species: worldwide, especially ± tropics; many alien weeds in California; many cultivated for food, drugs, or ornamental (potato, tomato, peppers, tobacco, petunia); many TOXIC. [Hunziker 2001 Genera Solanacearum. Koeltz Scientific Books] Nicandra physalodes (L.) Gaertn. is a waif. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Hunziker 2001 Genera Solanacearum: The Genera of Solanaceae Illustrated, Arranged According to a New System by A.T. Hunziker. Koeltz Scientific Books, Königstein, Germany]
Key to Solanaceae
Annual to subshrub, hairs ± 0 or simple, ill-smelling. Leaf: entire to deeply lobed. Inflorescence: flowers 1 in branch forks. Flower: calyx circumscissile near base, leaving ± rotate collar in fruit; corolla funnel-shaped, white or ± purple, lobes 5(10); stamens attached below tube middle; ovary 2- or 4-chambered. Fruit: capsule, leathery or woody, prickly; valves 2–4 or irregular. Seed: ± flat, black, brown, gray-brown, or tan.Key to Datura
± 13 species: warm regions, especially Mexico; several ornamental, some source of drugs. (Hindu: ancient name) All species. TOXIC.
Annual < 5 dm. Stem: gray-hairy. Leaf: 6–12 cm, 4–10 cm wide, widely ovate, coarsely toothed. Flower: erect; calyx 5–9 cm, 5-winged toward base, lobes 1–1.5 cm; corolla 10–16 cm, glabrous, white with purple markings in tube, lobes shallow; filaments 4.5 cm, anthers 5–6 mm; style 10–14 cm. Fruit: 4-valved, nodding, 35 mm wide, puberulent; prickles many, < 2 cm, weak. Seed: 3–3.5 cm, coarsely wrinkled, black with a white outgrowth near attachment scar.
n=12. Sandy, gravelly soils, washes; < 500 m. Sonoran Desert; Mexico. Apr–Oct [Online Interchange]
Previous taxon: Datura
Next taxon: Datura ferox
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 2 2015
Citation for this treatment: [Author of taxon treatment] 2013. Datura, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=22380, accessed on Mar 2 2015
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Gerald and Buff Corsi © 2007 California Academy of Sciences
|Geographic subdivisions indicated for the distribution of Datura discolor|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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