The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Brazilian nightshade

sticky nightshade, viscid nightshade

Habit Herbs, annual, erect, sparsely to moderately armed, 1–1.5 m, prickles yellow, straight or curved, 1–15 mm, densely pubescent, hairs unbranched, glandular and stellate, sessile, 4–7-rayed, central ray glandular or eglandular, longer than lateral rays.
Leaves

petiolate;

petioles twining around supports, 1–4 cm;

blade simple to compound, elliptic to broadly ovate, (2–)3.5–10(–13) × (1–)2–9(–11) cm, margins entire to divided with up to 4 pairs of leaflets, leaflet margins entire, base truncate or slightly cordate.

petiolate;

petiole 2–5 cm;

blade simple to compound, broadly ovate, 8–15 × 3–8.5 cm, margins deeply lobed to divided with 4–7 lobes or leaflets per side, lobes or leaflets with rounded to acute lobes, base acute or cordate.

Inflorescences

terminal, becoming lateral, extra-axillary, much-branched, to 100+-flowered, to 25+ cm.

extra-axillary, unbranched, 4–11-flowered, 4–15 cm.

Pedicels

inserted into small sleeve on inflorescence axis, 0.8–1.4 cm in flower and fruit.

0.5–1 cm in flower, 1.5–2.5 cm in fruit.

Flowers

radially symmetric;

calyx not accrescent, unarmed, ca. 0.5 mm, nearly truncate, glabrous or sparsely pubescent on lobe tips;

corolla purple, stellate, 1–2.5 cm diam., with sparse interpetalar tissue;

stamens unequal due to unequal filaments;

anthers ellipsoidal, 2–3 mm, dehiscent by terminal pores;

ovary glabrous.

radially symmetric;

calyx accrescent, moderately prickly, 6–9 mm, densely pubescent, hairs simple or sessile and stellate, glandular and eglandular, lobes subtending to almost completely and loosely covering fruit at maturity, deltate;

corolla white or pale blue, rotate-pentagonal, 2–3 cm diam., with abundant interpetalar tissue;

stamens equal or nearly so;

anthers narrow and tapered, 8–10 mm, dehiscent by terminal pores;

ovary glabrous to sparsely glandular-pubescent.

Berries

bright shiny red, globose, 0.8–1.5 cm diam., glabrous, without sclerotic granules.

bright red, globose, 1–2 cm diam., glabrous to sparsely glandular-pubescent, juicy, without sclerotic granules.

Seeds

pale yellowish tan, flattened, 4–4.5 × 2.5-3 mm, minutely pitted.

pale yellow, plump, 3–3.5 × 2–3 mm, minutely pitted.

Climbing

or scrambling vines, woody, unarmed, to ca. 3 m, glabrous or sparsely pubescent, hairs white, unbranched, ca. 0.2 mm.

2n

= 24.

= 24.

Solanum seaforthianum

Solanum sisymbriifolium

Phenology Flowering year-round. Flowering Feb–Oct.
Habitat Disturbed sites. Disturbed sites.
Elevation 0–200 m. (0–700 ft.) 0–100 m. (0–300 ft.)
Distribution
from FNA
FL; Mexico; West Indies; Central America (Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama); South America (Brazil, Colombia, Ecuador, Venezuela) [Introduced in North America; introduced also elsewhere in South America (Argentina, Paraguay, Peru), Asia, Africa, Pacific Islands, Australia]
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AZ; CA; DE; FL; GA; LA; MA; MS; NC; NJ; NY; PA; SC; TX; VA; ON; South America (Argentina, Bolivia, Brazil, Paraguay) [Introduced in North America; introduced also in Mexico, Central America (Costa Rica), nw South America, Europe, Asia (China, India), Africa]
[WildflowerSearch map]
[BONAP county map]
Discussion

Solanum seaforthianum is widely cultivated as an ornamental and sporadically escapes in Florida. A similar species with twining petioles, S. laxum Sprengel, is occasionally cultivated in California. It is distinguished from S. seaforthianum by having tufts of hairs in the vein axils of the abaxial leaf surfaces, white rather than violet corollas, and equal stamens.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

The bright red fruits of Solanum sisymbriifolium are edible, and the plants are used in pest control and as a nematode and beetle trap in Europe and the United Kingdom; however, cultivation of this species should be discouraged due to its invasive potential. Reports of this species from Oregon are old; it is not naturalized there.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 14. FNA vol. 14.
Parent taxa Solanaceae > Solanum Solanaceae > Solanum
Sibling taxa
S. americanum, S. aviculare, S. bahamense, S. campechiense, S. capsicoides, S. carolinense, S. chenopodioides, S. citrullifolium, S. cordicitum, S. davisense, S. deflexum, S. dimidiatum, S. diphyllum, S. donianum, S. douglasii, S. dulcamara, S. elaeagnifolium, S. emulans, S. erianthum, S. furcatum, S. hindsianum, S. interius, S. jamaicense, S. jamesii, S. laciniatum, S. lanceolatum, S. lumholtzianum, S. lycopersicum, S. marginatum, S. mauritianum, S. nigrescens, S. nigrum, S. nitidibaccatum, S. novomexicanum, S. perplexum, S. pseudocapsicum, S. pseudogracile, S. pumilum, S. rostratum, S. sarrachoides, S. setigeroides, S. sisymbriifolium, S. stoloniferum, S. tampicense, S. tenuipes, S. torvum, S. triflorum, S. triquetrum, S. umbelliferum, S. viarum, S. wallacei
S. americanum, S. aviculare, S. bahamense, S. campechiense, S. capsicoides, S. carolinense, S. chenopodioides, S. citrullifolium, S. cordicitum, S. davisense, S. deflexum, S. dimidiatum, S. diphyllum, S. donianum, S. douglasii, S. dulcamara, S. elaeagnifolium, S. emulans, S. erianthum, S. furcatum, S. hindsianum, S. interius, S. jamaicense, S. jamesii, S. laciniatum, S. lanceolatum, S. lumholtzianum, S. lycopersicum, S. marginatum, S. mauritianum, S. nigrescens, S. nigrum, S. nitidibaccatum, S. novomexicanum, S. perplexum, S. pseudocapsicum, S. pseudogracile, S. pumilum, S. rostratum, S. sarrachoides, S. seaforthianum, S. setigeroides, S. stoloniferum, S. tampicense, S. tenuipes, S. torvum, S. triflorum, S. triquetrum, S. umbelliferum, S. viarum, S. wallacei
Name authority Andrews: Bot. Repos. 8: plate 504. (1808) Lamarck: Tabl. Encycl. 2: 25. (1794) — (as sisymbrifolium)
Web links