Hyperbaena cubensis is a species of flowering plant in the family Menispermaceae. It is a shrub or tree with leathery leaves, greenish-yellow flowers, and round, black fruits. The species is native to Cuba, and was described in 1866.
Taxonomy In 1866, August Grisebach named Pachygone cubensis, a synonym of Hyperbaena cubensis. In 1899, Ignatz Urban moved the species from Pachygone to Hyperbaena.
Two varieties are recognised: Hyperbaena cubensis var. cubensis Hyperbaena cubensis var. parvifolia
Distribution Hyperbaena cubensis is native to the wet tropical biome of Cuba. It grows on limestone, in coastal thickets and dry hills.
Description Hyperbaena cubensis is a shrub or small tree that grows up to high. The branches are grey and cylindrical.
The leaves are leathery, long, and wide. The leaf edges are smooth, and usually undulating. The leaf stems are long.
The male inflorescences are usually in clusters, and grow on long stems. The male flowers are greenish-yellow, and have six sepals in two groups. The outer sepals are ovate, around long, and around wide. The inner sepals are broadly ovate, around long, and around wide. The male flowers have six petals in two groups. The petals are obovate, around long, and around wide. The male flowers have six stamens.
The female inflorescences are usually solitary, and grow on stems. The flower stems are long. The female flowers are greenish-yellow, and have six sepals in two groups. The outer sepals are ovate, around long, and around wide. The inner sepals are broadly ovate, around long, and around wide. The female flowers have six petals in two groups. The petals are obovate, around long, and around wide. The female flowers have three or four carpels.
The fruit is round, black, long, and wide.
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