Jepson eFlora: Taxon page
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Solanum douglasii

Higher Taxonomy
Family: SolanaceaeView DescriptionDichotomous Key

Habit: 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.
Genera In Family: 75 genera, 3000 species: worldwide, especially +- tropics; many alien weeds in California; many cultivated for food, drugs, or ornamental (potato, tomato, peppers, tobacco, petunia); Toxicity: many TOXIC. Note: Nicandra physalodes (L.) Gaertn. is a waif.
eFlora Treatment Author: Michael H. Nee
Scientific Editor: Thomas J. Rosatti.
Genus: SolanumView DescriptionDichotomous Key

Habit: Annual to shrub, vine or not, prickly or not, often glandular. Leaf: alternate to +- opposite, often unequal, entire to deeply pinnately lobed. Inflorescence: panicle or umbel-like, often 1-sided. Flower: calyx +- bell-shaped; corolla +- rotate, white to purple (yellow), lobes generally of different color toward base of midrib, generally without spots at base; anthers free, > filaments, oblong or tapered, opening by 2 pores or short slits near tip, in age often splitting to base; ovary 2-chambered, style 1, generally +- straight, stigma head-like. Fruit: berry, generally spheric, fleshy (or dry, capsule-like). Seed: many, compressed, generally reniform.
Species In Genus: +- 1500 species: worldwide, especially tropical America. Etymology: (Latin: quieting, from narcotic properties) Toxicity: many TOXIC. Note: Many cultivated for food (including potato, Solanum tuberosum), ornamental; Solanum dimidiatum in California an urban weed. See Lycopersicon for other taxa recently included here.

Solanum douglasii Dunal
Habit: Perennial herb to subshrub < 20 dm, much-branched; hairs generally simple, < 1 mm, +- curved, white. Leaf: 1--9 cm, ovate, entire to coarsely irregularly toothed. Inflorescence: generally umbel-like. Flower: calyx +- 2 mm; corolla +- 10 mm wide, white, lavender, or lavender-tinged, lobes deep; anthers generally 2.5--4 mm; style 4--5 mm, puberulent below. Fruit: 6--9 mm, black. Seed: 1.2--1.5 mm. Chromosomes: n=12.
Ecology: Dry scrub, woodland; Elevation: < 1000 m. Bioregional Distribution: s NCo, Teh, CW, SW, DMoj; Distribution Outside California: northern Mexico. Flowering Time: +- all year
eFlora Treatment Author: Michael H. Nee
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Previous taxon: Solanum dimidiatum
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Citation for this treatment: Michael H. Nee 2016. Solanum douglasii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 03, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 03, 2016.

Solanum douglasii
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© 2014 Neal Kramer
Solanum douglasii
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© 2009 Neal Kramer
Solanum douglasii
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© 2012 Gary A. Monroe
Solanum douglasii
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© 2007 Neal Kramer
Solanum douglasii
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© 2010 Thomas Stoughton
Solanum douglasii
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© 2015 Barry Breckling

More photos of Solanum douglasii in CalPhotos

Geographic subdivisions for Solanum douglasii:
s NCo, Teh, CW, SW, DMoj;
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.
map of distribution 1
(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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.