Goniothalamus tapis

It is a tree reaching 15–40 meters (49–131 ft) in height. Its petioles 4.5–11.5 by 1.4–3.4 millimeters and hairless or slightly hairy. Its papery to slightly leathery, oblong to elliptical leaves are 14.5–25.5 by 4.5–8 centimeters (5.7–10.0 by 1.8–3.1 in) long, with short tapering tips and pointed to round bases. The tops of the leaves are matt and hairless while the undersides are hairless to slightly hairy. The leaves have 11–16 pairs of secondary veins emanating from their midribs. Its solitary flowers are born on 6–10 by 1–1.9 millimeters pedicels in axillary to supra-axillary positions. The pedicels are hairless to slightly hairy and have 2–3 bracts. Its oval to triangular, pink to red sepals are 3.5–10 by 3–6.5 millimeters. The sepals are hairless to slightly hairy outside and hairless inside. Its flower have 6 petals in two rows of three. The oval to elliptical outer petals are 2.6–7.0 by 1–2.5 centimeters and have a claw. The outer petals are cream-colored to pale yellow with pink or red highlights. The outer petals are hairless to densely hairy inside and out with a basal hairless path on their inner surface. The inner petals are 10–19 by 2.5–9.5 millimeters with a 1.2–2.5 millimeter-wide claw. The inner leaves are cream-colored to pale yellow with pink or red highlights. …

It has been observed growing in rainforests at elevations of 30–900 meters (98–3,000 ft).

Bioactive molecules extracted from its bark and roots have been reported to inhibit platelet-activating factor receptor binding in tests with rabbit platelets.

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