Hyperbaena prioriana, commonly known as beef-bone, is a species of plant in the family Menispermaceae. It is endemic to Jamaica.
Hyperbaena prioriana is a shrub or tree with leathery leaves, yellowish-green flowers, and round green fruits.
Distribution Hyperbaena prioriana grows in rocky limestone woodlands in central and western Jamaica. It grows at altitudes of up to .
Description Hyperbaena prioriana is a shrub or tree that grows up to high, and wide. The branches are greyish to brown.
The leaves are leathery, ovate, long, and wide. The leaf stems are long.
The male inflorescences are usually in clusters, and grow on stems. The male flowers are yellowish-green, and have six sepals, arranged in two groups. The outer sepals are oblong-lanceolate, around long, and around wide. The inner sepals are broadly ovate to obovate, around , and around wide. The male flowers have six petals, which are around long, and wide. The male flowers have six stamens.
The female inflorescences are often in dense clusters, and grow on long stems. The flower stems are long.
The fruits are round, green, and wide and long.
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