What is the difference between dragon bone and three-edged arrow, are they the same plant

1. Different attributes

Dragon bone and three-edged arrow are different plants, with obvious differences in their attributes. Dragon bone, also called Euphorbia tirucalli 'Firesticks' or triangular milk hedge, is a succulent of the genus Euphorbia in the family Euphorbiaceae. Three-edged arrow, also called queen of the night or night-blooming cereus, is a plant of the genus Hylocereus in the family Cactaceae.

2. Different appearance

The stem of dragon bone is very thick and very long, some can reach more than 8 m. In appearance, it is fleshy, green, with 3 broad ribs, and there are small areole-like openings in the axils along the rib edges. Compared with the former, three-edged arrow has more branches, the ribs are wide and very thin, there are aerial roots on the stem, and the spines are spaced about 3 to 4 cm apart.

3. Different flowers

The two can also be distinguished by their flowers. When dragon bone blooms, the flowers are solitary, 25-30 cm long. The calyx is petal-like, yellow-green. The petals are white. When three-edged arrow blooms, the flower color is white, funnel-shaped, with the outer petals yellow-green and the inner ones white.

4. Different fruit

The two can also be distinguished by their fruit. When dragon bone bears fruit, the fruit shape is elliptical to ovate, 6-12 cm long, about 4-10 cm in diameter, red on the surface, with white flesh. The fruit of three-edged arrow is oblong-spherical, slightly larger than the former.