Solanum pubigerum Dun.

Shrubs or small trees, 1–5 m tall. Stems erect, glabrous to sparsely pubescent with simple uniseriate trichomes ca. 0.5 mm long, glabrescent; new growth glabrous or sparsely pubescent with simple trichomes, usually drying dark. Bark of older stems brown or pale brown to yellowish brown. Sympodial units plurifoliate. Leaves simple, (2-)3–20 cm long, (1-)1.2–7 cm wide, elliptic to narrowly elliptic, membranous, the upper surfaces glabrous or with a very few simple uniseriate trichomes on the veins and occasionally extending to the lamina, the lower surfaces sparsely to densely pubescent all along the midrib and on the veins with simple uniseriate trichomes ca. 0.5 mm long, these usually tangled and with small cells, the trichomes occasionally extending to the lamina; primary veins 12–16(-24) pairs, usually drying yellow; base attenuate, not winged onto the stem; margins entire; apex acute; petioles 0.5–2 cm long, with the leaf base narrowly attenuate to the base, glabrous or with a few simple uniseriate trichomes, never twining. Inflorescences terminal or occasionally lateral, 4–15 cm long, many times branched, with 50–100+ flowers, glabrous or with a few scattered simple trichomes, these denser near the pedicel insertion points; peduncle 1.5–7 cm long; pedicels 0.5–0.6 cm long, ca. 0.5 mm in diameter at the base, ca. 1 mm in diameter at the apex, slender, strongly nodding at anthesis, glabrous, articulated at the base from a small sleeve; pedicel scars clustered at the tips of inflorescence branches in groups of 5–10 as small platforms. Buds ellipsoid, the corolla strongly exserted from the calyx tube before anthesis. Flowers all perfect, 5-merous. Calyx tube 1–1.3 mm long, conical, the lobes ca. 0.5 mm long, deltate, glabrous with the tips and margins densely pubescent with simple uniseriate trichomes ca. 0.2 mm long. Corolla 1–1.4 cm in diameter, white, occasionally tinged violet, stellate, lobed 1/2 to 3/4 of the way to the base, the lobes 4–6 mm long, 3–4 mm wide, spreading or planar at anthesis, densely pubescent on the tips and margins with simple uniseriate trichomes, otherwise glabrous. Filament tube minute, the free portion of the filaments 1–1.5 mm long, glabrous; anthers 1.5–2 mm long, 0.5–0.75 mm wide, ellipsoid, loosely connivent, poricidal at the tips, the pores usually lengthening to slits with age. Ovary glabrous; style 5–5.5 mm long, glabrous; stigma minutely capitate, the surface minutely papillose. Fruit a globose berry, 0.7–0.8 cm in diameter, red when mature, the pericarp thin and shiny, glabrous; fruiting pedicels 1–1.2 cm long, slightly woody, erect. Seeds ca. 10 per berry, 3–3.5 mm long, 2–2.5 mm wide, flattened reniform, reddish brown, the surfaces minutely pitted, the testal cells rectangular. Chromosome number: not known.

(Figure 75). From the State of San Luis Potosí, Mexico to Guatemala, with disjunct populations in central Costa Rica, occurring from 2000-3200 m. Solanum pubigerum is very common in central Mexico and in the mountains around Mexico City.

Solanum pubigerum là loài thực vật có hoa trong họ Cà. Loài này được Dunal miêu tả khoa học đầu tiên năm 1813.