Solanum seaforthianum |
Solanum tampicense |
|
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Brazilian nightshade |
aquatic soda apple, scrambling nightshade |
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Habit | Shrubs, scandent, branches 1–2+ m, moderately to densely armed, prickles yellow, recurved, 2–8 mm, glabrate to sparsely pubescent, hairs tan to reddish, stellate, 3–6-rayed, central ray equal to 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 1–4 cm; blade simple, ovate, 4–16 × 2–6 cm, margins shallowly to moderately lobed with 2–5 lobes per side, lobe margins entire, base cuneate and slightly decurrent. |
Inflorescences | terminal, becoming lateral, extra-axillary, much-branched, to 100+-flowered, to 25+ cm. |
extra-axillary, unbranched, 3–10-flowered, 1–4 cm. |
Pedicels | inserted into small sleeve on inflorescence axis, 0.8–1.4 cm in flower and fruit. |
0.5–2 cm in flower and 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 not accrescent, sometimes prickly, 2–5 mm, glabrous, lobes narrowly triangular; corolla white to cream, stellate, 1.5–2 cm diam., without interpetalar tissue; stamens equal; anthers narrow and tapered, 4–6 mm, dehiscent by terminal pores; ovary glabrous. |
Berries | bright shiny red, globose, 0.8–1.5 cm diam., glabrous, without sclerotic granules. |
red, globose, 0.5–0.8 cm diam., glabrous, without sclerotic granules. |
Seeds | pale yellowish tan, flattened, 4–4.5 × 2.5-3 mm, minutely pitted. |
yellow, flattened, 1.5–2 × 1–1.5 mm, minutely pitted and ridged. |
Climbing | or scrambling vines, woody, unarmed, to ca. 3 m, glabrous or sparsely pubescent, hairs white, unbranched, ca. 0.2 mm. |
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2n | = 24. |
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Solanum seaforthianum |
Solanum tampicense |
|
Phenology | Flowering year-round. | Flowering Feb–Dec. |
Habitat | Disturbed sites. | Swamps, riverbanks, wet areas. |
Elevation | 0–200 m. (0–700 ft.) | 0–200 m. (0–700 ft.) |
Distribution |
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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FL; TX; Mexico; Central America; West Indies (Cuba, Lesser Antilles); South America (Colombia, Venezuela) [Introduced in North America] |
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.) |
In the flora area, Solanum tampicense is found in central and southern Florida. A single population was found in 2016 in Cameron County, Texas. It was first collected in Florida in 1983, and although not common, it has the potential to become invasive. It is listed by the United States federal government and several states as a noxious weed. It is a species of riverbanks and swamps, where it can form impenetrable, spiny thickets. (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 | ||
Name authority | Andrews: Bot. Repos. 8: plate 504. (1808) | Dunal in A. P. de Candolle and A. L. P. P. de Candolle: Prodr. 13(1): 284. (1852) |
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