Solanum triflorum
Solanum jamaicense
cut-leaf nightshade, three flower nightshade
Jamaican nightshade
petiolate;
petiole 0.5–2.5 cm;
blade simple, elliptic to oblong, 2–5 × 1–3 cm, margins shallowly lobed to deeply and regularly pinnatifid with 3–6 lobes per side, lobe margins entire or occasionally coarsely lobed, base cuneate and decurrent.
petiolate or sessile;
petiole to 1 cm;
blade simple, rhombic, 4–13 × 3–8 cm, margins entire or with 2–5 shallow lobes per side, lobe margins entire, base cuneate and decurrent.
extra-axillary, unbranched, umbel-like, 1–6-flowered, 1–3 cm.
extra-axillary, unbranched, 5–15-flowered, 1–3 cm.
spreading and 0.5–1.5 cm in flower, reflexed and 0.5–1.5 cm in fruit.
0.5–1 cm in flower, 1–1.5 cm in fruit.
radially symmetric;
calyx accrescent and covering base of berry, unarmed, 2–4(–7) mm, moderately pubescent, lobes deltate, reflexed;
corolla white or light purple with green or purplish central star, stellate, 0.5–1 cm diam., with sparse interpetalar tissue;
stamens equal;
anthers narrowly ellipsoidal, 2.5–4 mm, dehiscent by terminal pores that open into longitudinal slits;
ovary glabrous.
radially symmetric;
calyx not accrescent, unarmed, 2–7 mm, moderately to densely stellate-pubescent, hairs long-stalked, lobes linear;
corolla white, stellate, 1–2 cm diam., without interpetalar tissue;
stamens equal;
anthers narrow and tapered, 3.5–5 mm, dehiscent by terminal pores;
ovary glabrous to very sparsely glandular-puberulent.
shiny dark green to purplish black, globose, 0.8–2 cm diam., glabrous, with 13–30 sclerotic granules.
bright shiny red to orange, globose, 0.4–1.2 cm diam., glabrous, without sclerotic granules.
yellow, plump, 2–3 × 2–2.5 mm, minutely pitted.
yellow, flattened, 1–1.5 × 0.5–1 mm, minutely pitted and ridged.
= 24.
= 24.
Solanum triflorum
Solanum jamaicense
Solanum triflorum is found in South America (Argentina) and is also considered to be native to central and western North America. It is occasionally adventive in the eastern United States. It is poisonous to livestock and can become a serious weed in cultivated fields, especially in the Great Plains.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Solanum jamaicense is thought to have been spread to Florida by birds that eat the bright red berries. It was first seen in the state in 1930 and, although locally invasive in hammocks of central Florida, has not become a widespread pest.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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