Description:
Like other Capsicum frutescens cultivars, siling labuyo has a compact habit, growing between 1 and 4 ft (0.30 and 1.22 m) high. They have smooth ovate to lanceolate leaves that are around 2.5 in (6.4 cm) in length with pointed tips. They produce small greenish-white flowers with purple stamens. These develop into a large number of small, tapering fruits that are around 0.20 to 0.70 in (0.51 to 1.78 cm) in length. The fruits are very pungent and are characteristically borne erect (pointing upwards). Immature fruits are deep green in color and usually ripen to a vivid red. Depending on maturity and the variety, they can display a range of other colors, including yellow, orange, white, or a vivid purple. Flowers and fruits are often clustered in groups of 2 to 3 at a node.[1][10][11][12]
Siling labuyo fruits are small but are very hot. It measures around 80,000-100,000 Scoville units which is at the lower end of the range for the hotter habanero chili.[2] At one time it was even listed as the hottest chili in the Guinness Book of World Records but other hotter varieties of chili have since been identified.