Solanum viarum
Solanum pseudocapsicum
tropical soda apple
Jerusalem cherry, Jerusalem- or winter-cherry, Jerusalem-cherry nightshade
petiolate;
petiole 3–6 cm;
blade simple, ovate to suborbiculate, 7–10(–20) × 6–8(–15) cm, margins coarsely lobed with 3–5 lobes per side, lobe margins entire to coarsely toothed, base truncate to cordate.
petiolate;
petiole 0.2–1 cm;
blade simple, elliptic, 1–9 × 0.5–4.5 cm, margins entire, base acute to attenuate.
extra-axillary, sessile or nearly so, unbranched, 3–5-flowered.
leaf-opposed, unbranched, 1–8-flowered, 0.2–1 cm.
0.7–1.1 cm in flower, 1–2 cm in fruit.
0.3–0.7 cm in flower, 0.8–1 cm and erect in fruit.
radially symmetric;
calyx somewhat accrescent, unarmed or sparsely prickly, 3–4 mm, densely pubescent, lobes triangular;
corolla greenish or whitish, stellate, 1.5–2.5 cm diam., without interpetalar tissue;
stamens equal;
anthers narrow and tapered, 5.5–7(–10) mm, dehiscent by terminal pores;
ovary densely pubescent, hairs glandular and eglandular.
radially symmetric;
calyx somewhat accrescent, unarmed, 2.5–6 mm, glabrous to densely pubescent with dendritic hairs, lobes long-triangular;
corolla white, stellate, 1–1.5(–2.5) cm diam., without interpetalar tissue;
stamens equal;
anthers oblong, 3–4 mm, dehiscent by terminal pores that open into longitudinal slits;
ovary glabrous.
light green mottled with dark green when young, yellow when ripe, globose, (1.5–)2–3 cm diam., glabrous, without sclerotic granules.
yellow to orange or red, globose, 1–2 cm diam., glabrous, without sclerotic granules.
reddish brown, flattened, 2–3 × 2–2.5 mm, minutely pitted.
yellowish, flattened with thickened margins, 3–4 × 2.5–3 mm, minutely pitted.
= 24.
= 24.
Solanum viarum
Solanum pseudocapsicum
In the United States, Solanum viarum was first collected in Florida in 1988 and has subsequently become an aggressive and invasive species in the Southeast. It is on the Federal Noxious Weeds List and is classified as a noxious weed or plant pest in many states. Cattle and other animals eat the fruits and spread the seeds through their feces, and the seeds are coated with a sticky substance that makes them adhere to farm equipment when the plants are mowed. It can form large patches that are difficult to eradicate due to their extensive root systems and sharp prickles. It is a major agricultural pest and a threat to native ecosystems.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Solanum pseudocapsicum is native from Mexico to Argentina, southern Brazil, and Uruguay. It is grown as an ornamental for its showy fruits, especially around Christmas. It occasionally escapes from cultivation in southern Florida and Texas. In Texas, it has become established and fairly common in Austin, in the Lower Rio Grande Valley, and in Goliad and Caldwell counties. Cultivated forms are usually glabrous, but some can have branched pubescence. The fruits are mildly poisonous when ingested by humans but can be highly toxic to dogs and some birds.
Solanum pseudocapsicum, along with S. diphyllum, has a distinctive leaf arrangement in which a longer, narrower leaf is paired with a shorter, often more rounded one.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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