Vines slender, woody, 1-5 m, glabrescent; pubescence of simple hairs. Leaves simple or pinnately compound; petiole 2-5 cm; leaf blade 4-10 × 4-7 cm, puberulent along veins, base acute, obtuse, truncate, or cordate, usually pinnately (5-)7(-9)-parted; lobes ovate to oblong or lanceolate, unequal, 1.5-5 × 0.5-2.5 cm, acute or acuminate. Inflorescences leaf opposed or appearing terminal, showy, many-flowered open panicles; peduncle to 4 cm, branched. Pedicel 5-10 mm, abscissing nearly at base. Calyx cup-shaped, 1-1.5 × 2-3 mm, truncate or with minute, short deltate lobes, glabrous. Corolla usually purple, rarely white, 0.9-1.3 cm; lobes ovate-oblong, 5-8 × 2.5-4.5 mm, glabrous. Filaments 2-3 mm; anthers free, 3-4 mm. Style ca. 1 cm. Fruit (not seen in Chinese plants) red, juicy, globose, 1-2 cm. Seeds discoid, 2-3.5 mm in diam.
Solanum seaforthianum Andrews, Bot. Repos. 8: t. 504. 1808.
Trepadoras leñosas, glabras, inermes. Hojas solitarias, más o menos lanceoladas, 815 cm de largo, ápice acuminado, base redondeada o truncada, enteras, lobadas o pinnadas, lobos o folíolos cuando presentes 57, los senos mayormente redondeados; folíolos intersticiales y pseudostipulares ausentes; pecíolos 35 cm de largo. Inflorescencias panículas racemosas con muchas flores, laxas, terminales o laterales en ramas frondosas, pedúnculo bifurcado, 16.5 cm de largo, pedicelos 815 mm de largo; cáliz 13 mm de largo, undulado-truncado; corola 2030 mm de diámetro, azul, purpúrea o blanca, profundamente lobada, lobos oblongos o lanceolados; anteras 2.53.5 mm de largo. Baya globosa, 0.81.1 cm de diámetro, roja, pedicelos fructíferos no acrescentes, delgados, erectos a patentes; semillas aplanadas, 34 mm de diámetro.
Común, trepadora del dosel en laderas boscosas, especialmente en áreas húmedas, también cultivada como ornamental, zonas norcentral y atlántica; 01300 m; fl casi todo el año, fr junfeb; Guzmán 741, Stevens 2997; común en los países del Caribe y cultivada en muchos otros países tropicales, a veces escapada del cultivo.
Woody vines, twining by the petioles. Stems terete, glabrous or sparsely pubescent with white simple uniseriate trichomes ca. 0.2 mm long; new growth glabrous or with a few simple uniseriate trichomes on the stems, often drying black. Bark of older stems brown to reddish brown.
Sympodial units plurifoliate, not geminate.
Leaves simple or more often pinnatifid or pinnately lobed with up to 4 pairs of leaflets, (2-)3.5-10(-13) x (1-)2-9(-11) cm, elliptic to broadly triangular in outline, widest in the basal third, membranous, the upper surfaces glabrous or with tiny simple uniseriate trichomes on the veins and margins, these sometimes extending to the lamina near the base, the lower surfaces glabrous; primary veins 4-6 pairs, in lobed leaves corresponding to the number of lobes, often drying yellowish brown; base acute, truncate or slightly cordate, occasionally oblique and asymmetric; margins less commonly entire, usually 3-7 lobed, the lobes to 5 x 2 cm, smaller basiscopically; apex acute to acuminate; petioles 1-4 cm, adaxially pubescent in a tiny groove with tiny simple trichomes like those of the upper leaf surfaces, twining.
Inflorescences terminal, later lateral, to 25 or more cm long, with many open, divaricate branches, with up to 100 or more flowers, glabrous; peduncle to 6 cm; pedicels 0.8-1.4 cm, ca. 0.5 mm in diameter at the base, ca. 1 mm in diameter at the apex, glabrous, articulated at the base from a small sleeve, leaving a small peg on the inflorescence axis; pedicel scars irregularly spaced 2-6 mm apart, closer together near the tips of the inflorescence branches. Buds globose, slightly inflated, the corolla strongly exserted form the calyx tube long before anthesis.
Flowers all perfect, 5-merous. Buds globose, slightly inflated, the corolla strongly exserted form the calyx tube long before anthesis. Calyx tube ca. 0.5 mm, flattened and open, the lobes < 0.2 mm, mere apiculae from the entire rim, glabrous with tufts of tiny simple trichomes to 0.2 mm on the apiculae. Corolla 1.1-2.5 cm in diameter, violet or pale violet, stellate-rotate, lobed ½ to 2/3 of the way to the base, the lobes 5-9 x 3-4.5 mm, spreading or slightly cupped at anthesis, densely and minutely pubescent on the tips and margins, the trichomes simple, uniseriate, tangled. Filament tube minute, the free portion of the filaments markedly unequal, the longest filament 2-3 mm, elongating as anthesis progresses, the other four 1-1.5 mm, quite variable, occasionally two filaments longer, all glabrous; anthers 2-3 x 1-1.5 mm, occasionally one anther slightly larger, ellipsoid, loosely connivent, yellow, poricidal at the tips, the pores not markedly lengthening to slits with age. Ovary glabrous; style 7-10 mm, strongly curved away from the anther on the long filament, glabrous; stigma capitate, the surface minutely papillose.
Fruit a globose berry, 0.8-1.4 cm in diameter, bright shiny red when ripe, glabrous, the pericarp thin; fruiting pedicels 0.8-1.4 cm, ca. 1 mm in diameter at base and apex, pendant from weight of berries, not markedly woody.
Seeds 4-20 per berry, 4-4.5 x 2.5-3 mm, flattened-reniform, pale yellowish tan, the surfaces minutely pitted, the testal cells pentagonal, the lateral cell walls elongate to 0.5 mm, leaving a wing of ca. 0.5 mm around the seed and the seed appearing pubescent.
High climbing liana, glabrous, the stems slender, green, becoming woody. Leaves simple, compound or lobed, often all on the same plant, the lobes mostly ovate, the sinuses broadly rounded, apically long-acuminate, basally acute, obtuse, truncate or cordate; petioles 3-5 cm long. Inflorescence a large, showy, ternately- branching panicle, the peduncle slender; pedicels slender and abscissing nearly at the base; calyx 2-3 mm long, apically truncate or with very short deltoid or umbonate lobes, not splitting at the sinuses and not expanded in the lower portion; corolla purple, pinkish, blue or rarely white, 2-5 cm across, lobed to more than one half the way down; stamens subequal, the filaments glabrous, short, the anthers stout, 2.5-3.5 mm long, dehiscing by large terminal pores which may coalesce, and ultimately by longitudinal slits; ovary and style glabrous, the stigma small, capitate. Fruits globose, 1-2 cm across, bright, shiny, deep scarlet, juicy; seeds 3.5 mm across.
Flowers ± pendulous; pedicels 5–16(19 in fruit) mm long, slender, slightly thickened upwards, abscissing near the base.
Cymes soon displaced laterally, showy, paniculiform or corymbiform, 4.5–17 cm long, ± lax, usually many-flowered, drooping, with the axes glabrous apart from a few glandular hairs; peduncle (0.5)1.5–4.5(7.5) cm long, elongated to 9 cm in fruit.
Leaves solitary; petiole 1–4.5 cm long; lamina membranous, 2.5–14 × 1.5–10 cm, ovate to sometimes elliptic or obovate in outline, acute to truncate or cordate and somewhat unequal-sided at the base, subglabrous or pubescent at least along the margins and veins, and also with some glandular hairs often present beneath, mostly pinnatilobed to pinnatisect distally and pinnatisect proximally, with (3)5–7(9) lobes or segments, these 0.7–8.4 × 0.2–3.2 cm, the lowest often smaller and the upper ones mostly confluent with the rhachis, ovate to lanceolate, obovate to oblanceolate, elliptic or oblong, basally cuneate, truncate or sub-cordate and ± oblique, broadly attached to shortly stalked, apically obtuse to acute and often ± long-acuminate, entire or undulate, the sinuses broadly rounded to acute.
Branches ± terete, slender, becoming somewhat woody.
Corolla blue to mauve, purple or lilacineous, elsewhere rarely white, ± deeply stelliform, 12–29 mm across; lobes 5–12 × 2–7 mm, oblong or lanceolate, acutish from a tapering apex, with eglandular hairs along the margins and on the tip.
Calyx green to purplish upwards, 0.7–1.2 mm long, campanulate or cupular, glabrous or glandular, apically truncate or with umbonate teeth to short, deltate, obtuse lobes tipped with a few hairs, in fruit not splitting at the sinuses.
Ovary c. 1 mm in diameter, globose or globose-conical, glabrous or with a few glandular hairs; style 6–11 mm long, slender, straight but curved at the apex, much exceeding the stamens.
Fruit bright to deep shiny red, 7–11 mm in diameter, globose to ovoid, finally pulpy, poisonous.
Seeds numerous, creamy to reddish-brown, 2.6–4 × 2–3.5 mm, sub-reniform or circular to obovate in outline, appearing hirsute with the remains of cell walls projecting outwards.
Climbing or trailing shrub to 6 m, subglabrous or scarcely pubescent; hairs simple, few-celled, ± curved, usually ± appressed, with tiny glandular ones also.
Stamen filaments 1.5–3.5 mm long; anthers 2–4 mm long, stout, oblong in outline, not or slightly tapering towards the apex.