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Brazilian nightshade



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.


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


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


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.


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


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


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


= 24.

Solanum seaforthianum

Phenology Flowering year-round.
Habitat Disturbed sites.
Elevation 0–200 m. (0–700 ft.)
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]
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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.)

Source FNA vol. 14.
Parent taxa 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
Name authority Andrews: Bot. Repos. 8: plate 504. (1808)
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