Botany
Kayomkom is a hairy tree growing to a height of 15 meters. Twigs are angular and densely covered with tawny hairs. Leaves are often unequal and broadly ovate, up to 25 centimeters wide, usually entire, pointed at the tip, heart-shaped at the base, covered with very dense, soft hairs beneath and less dense hairs above, and borne on stalks 5 to 25 centimeters long. Inflorescences are terminal, corymbose and crowded. Calyx is cone-shaped, broadly and somewhat smoothly toothed. Corolla-tube is scarcely as long as the calyx; the lobes rotately spreading, with white or pink margins. Stamens are much longer than the corolla. Fruit is small, rounded, flattened, smooth, and almost entirely enclosed by the slightly enlarged purplish calyx, which often becomes reflexed.
Distribution
- Chiefly in secondary forests at low and medium altitudes in Ilocos Norte, Abra, Bontoc, Kalinga, Benguet, Nueva Viscaya, Rizal, Laguna, Quezon, Camarines, and Sorsogon Provinces in Luzon; and in Polilo, Mindoro, Catanduanes, Leyte, and Mindanao.
Constituents
- Study of ethanol extract of leaves yielded eudesmin, syringaresinol dimethyl ether, kusaginin and a new glycoside, brachynoside - 2-(3,4-dimethoxyphenyl)ethyl 3-O-α-L-rhamnopyranosyl-4-O-(3,4-dihydroxycinnamoyl)-β-D-glucopyranoside.
Properties
Considered tonic.
In large doses, considered abortive.
Parts used
Leaves
Uses
Folkloric
- In the Philippines, a decoction of fresh leaves is given as a tonic for stomach troubles.
- Decoction of fresh leaves
in large doses considered abortive.
Studies
• Clerodins / Diterpenoids: Study of a hexane extract of leaves yielded two neoclerodane diterpenoids, clerodins A and B, together with known compounds, clerodin, stigmasta-5,22,25-trien-3ß-ol and 3-epi-glutinol.
• Brachynoside: Study of an ethanol extract of leaves yielded a new glucoside, brachynoside, together with eudesmin, syringaresinol dimethyl ester, kusaginin.
Availability
Wild-crafted.
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