Papeda

The micrantha was first described to Western science in 1915 by Peter Jansen Wester, who worked for the Philippine Bureau of Agriculture at the time.

Biasong. Wester collected ripe fruit specimens of biasong (small-flowered papeda, Citrus hystrix var. micrantha) on islands of Cebu, Bohol, Dumaguete, Negros, and in the Zamboanga and Misamis provinces in Mindanao. The fruits were collected throughout the year, indicating that the plant is ever-bearing. Biasong is characterized by small flowers (thus the "small-flowered" moniker) with fewer stamens than other papedas and oblong-obovate, few-loculed fruits. Though the fruit is not eaten and with little economic importance, its juice is used as a souring agent for kinilaw, or for hair-washing. Biasong's aroma is similar to that of the samuyao variety of micrantha. The tree reaches 7.5 to 9 metres (25 to 30 ft) in height. Leaves are 9–12 cm (3.5–4.7 in) long, 2.7–4.0 cm (1.1–1.6 in) wide, broadly elliptical to ovate, crenate, thin, with base rounded or broadly acute; apex acutely blunt pointed. Petioles are 3.5–6 cm (1.4–2.4 in) long, broadly winged, up to 4 cm (1.6 in) wide, with wings (phyllodes) sometimes larger than the leaf. Flowers are small, four-petaled, white with a thin purple edge, 12–13 mm (0.47–0.51 in) in diameter, forming cymes of two to five. There are 15 to 17 equal stamens. …