Abstract
After comprehensive morphological comparison, specimen examination, and phylogenetic relationship inference, a new climbing fig tree, Ficus flavifolia (Moraceae) is described and illustrated from central Laos. The new species shares some traits with the F. sarmentosa complex, such as distichous leaves, axillary solitary figs, and two free stamens, indicating the new species to be a member of the latter together with the phylogenetic results. The new species is sister to F. howii, but it is easily distinguishable from the latter by the well-developed indumentum on the leaves and syconia, yellowish-brown abaxial surface of lamina, thick branchlets, petioles, and peduncles, and ridges on the syconia.
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