Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Solanum

View taxon page for Solanum

(For a list of species in Solanum, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Hairs (some or all) anthers , opening by terminal pores; plant often prickly

2. Stellate hairs scale-like, rays fused at base ..... S. elaeagnifolium

2' Stellate hairs not scale-like, rays free

3. Anthers unequal; calyx tightly enclosing fruit ..... S. rostratum

3' Anthers generally ± equal; calyx not tightly enclosing fruit

4. Leaf abaxially densely white-tomentose or velvety

5. Calyx not prickly; inflorescence branches 2–4; fruits several to many per inflorescence, 7–15 mm diam ..... S. lanceolatum

5' Calyx prickly; inflorescence branches 0; fruits 1 per inflorescence, 35–50 mm diam ..... S. marginatum

4' Leaf abaxially sparsely , neither clearly white nor velvety

6. Leaf deeply pinnately lobed,   to lobed ± to midrib; annual; fruit red ..... S. sisymbriifolium

6' Leaf ± entire to wavy-lobed, teeth or lobes ± entire;  herb from ; fruit yellow ..... S. carolinense

6a. Corolla generally pale violet (white); stellate hairs fine, generally ; inflorescence generally raceme-like; fruit 8–20 mm ..... S. carolinense

6a' Corolla generally purple (white); stellate hairs coarse, some stalked; inflorescence generally branched; fruit > 20 mm ..... [S. dimidiatum]

1' Hairs branched or not but not stellate; anthers , opening by terminal pores that become short slits; plant not prickly

7. Leaf deeply lobed; annual ..... S. triflorum

7' Leaf entire to shallowly lobed, if deeply 1–2-lobed below middle, shrub

8. Corolla lobes < tubethroat, generally 

9. Shrub 2–4 m;  ± entire to deeply 1–2-lobed below middle; fruit orange-red ..... S. aviculare

9' Perennial herb to subshrub generally < 1 m; leaf entire to 1–2-lobed at base; fruit green to ± purple

10. Upper stem hairs branched ..... S. umbelliferum

10' Upper stem hairs 0 or generally 

11. Stem ± glabrous, ridged; leaf sessile or gradually tapered to  base ..... S. parishii

11' Stem generally soft- or glandular-hairy, not or weak-ridged; leaf petioled,  base rounded or  to ± 

12. Leaf generally 6–10 cm, oblong to ; fruit generally 15–25 mm; ChI ..... S. wallacei

12' Leaf 2–7 cm,  to ovate; fruit 10–15 mm; mainland ..... S. xanti

8' Corolla lobes >= tube + throat, often 

13. Inflorescence of generally 2 umbel-like clusters, axis generally 

14. Corolla purple to violet, lobes each with 2 green spots at base; plant ± woody, ± climbing ..... S. dulcamara

14' Corolla white to pale violet, lobes not spotted; plant not woody, generally ± reclining ..... S. furcatum

13' Inflorescence umbel- or raceme-like, axis not forked

15. Calyx enlarged, enclosing fruit base; fruit ± yellow or green ..... S. physalifolium var. nitidibaccatum

15' Calyx not enlarged, not enclosing fruit base; fruit black or ± green

16. Anthers generally 2.5–4 mm ..... S. douglasii

16' Anthers 1.4–2.2 mm

17. Seeds 1–1.5 mm; hairs ±  or curved, nonglandular ..... S. americanum

17' Seeds 1.5–2.5 mm; hairs ± spreading or curved, glandular and not ..... S. nigrum



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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