Capsicum villosum

Capsicum villosum is an accepted wild Brazilian species first published by Otto Sendtner in 1846. It is endemic to south-eastern Brazil and is centred in the Atlantic Forest region, especially in Minas Gerais, Rio de Janeiro and São Paulo. Current taxonomic sources treat it as a distinct accepted species, and it is a shrub of the wet tropical biome.

It is one of the more immediately recognisable wild Brazilian peppers because the whole plant is densely covered in long, spreading hairs. Field and taxonomic sources describe it as very pubescent, with flexuous eglandular trichomes, and this strong hairiness is one of its clearest defining traits. Plants are usually shrubby, often around 1 to 2 m tall, but vigorous plants in habitat can reach about 3 m. The leaves are green, often borne in unequal pairs along the branches, with one leaf larger than the other.

The flowers are erect and the pedicels are geniculate at anthesis. The corolla is white, with greenish to yellowish spotting in the throat and purplish to reddish-purple pigmentation inside the lobes. Another key feature is the calyx, which has five evident teeth, described in multiple sources as shorter than those of some related Atlantic Forest species but still clearly developed and diagnostic for this plant.

The fruit is a small pungent berry that begins green and ripens to a translucent greenish-golden yellow. The fruits are associated with dark brown to black seeds in modern Capsicum treatments and field observations. Reports from Brazilian wild Capsicum fieldwork note that the fruits are pungent and can be quite hot, especially before full ripening.

In habitat, Capsicum villosum is recorded from forest margins, the edges of roads and trails, and the limits of clearings, often in transition zones between light and shade. Field reports place it from roughly 500 to 2000 m, with some documented populations in bushy, sandy uplands and protected Atlantic Forest localities such as Boracéia and Itatiaia. It is regarded as relatively widespread compared with several other south-eastern Brazilian wild Capsicum species. A recorded Brazilian common name for it is pimentinha.