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What is the difference between Bougainvillea spectabilis and Bougainvillea glabra?

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Stem differences: The stems of Bougainvillea spectabilis are covered with dense fine hairs. The stems of Bougainvillea glabra have no hairs or only a few hairs. Leaf differences: The leaf tips of Bougainvillea spectabilis are not particularly pointed. The leaf tips of Bougainvillea glabra are relatively sharp. Flower differences: The bracts of Bougainvillea spectabilis are mostly red. The bracts of Bougainvillea glabra are purple or magenta.

I. Stem differences

The stems of Bougainvillea spectabilis bear curved spines that bend downward. Its stems also produce dense fine hairs. The stems of Bougainvillea glabra likewise bear curved spines, 5-15mm long, but its stems have no hairs or few hairs.

II. Leaf differences

The leaves of Bougainvillea spectabilis are ovate, covered with relatively thick hairs. In addition, their tips are not particularly pointed. The leaves of Bougainvillea glabra are ovate or ovate-lanceolate, hairless on the upper surface, with sparse hairs on the lower surface, and the tips are relatively pointed.

III. Flower differences

The flowers of Bougainvillea spectabilis are relatively small, usually clustered in groups of three, and the bracts are mostly red. Bougainvillea glabra is about 2.5-3.5cm long and about 2cm wide, and its bracts are purple or magenta.

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