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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Citation for this treatment: Michael H. Nee 2016. Solanum douglasii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 29, 2016.

Solanum douglasii
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© 2009 Neal Kramer
Solanum douglasii
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© 2014 Neal Kramer
Solanum douglasii
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© 2015 Barry Breckling
Solanum douglasii
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© 2006 Steve Matson
Solanum douglasii
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© 2009 Thomas Stoughton
Solanum douglasii
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© 2010 Thomas Stoughton

More photos of Solanum douglasii in CalPhotos

Geographic subdivisions for Solanum douglasii:
s NCo, Teh, CW, SW, DMoj;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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.