Longtuzhu's leaves are papery, narrow ovate or oval in shape, 4 to 10 cm long and 1.5 to 4 cm wide. The top of longtuzhu gradually becomes sharp, the base of longtuzhu is nearly round, the whole leaf has small verrucous hairs on the surface, slightly rough, the back is nearly hairless, and the petiole grows about 1 to 2 cm.
Red calyx dragon spits the bead leaf to be opposite, assumes the paper, has the petiole, the shape assumes the egg shape ellipse, the entire edge, the apex gradually becomes the sharp, the base nearly circular.
Cymes axillary or pseudoterminal, dichotomous, 7 to 15 cm long and 10 to 17 cm wide. The involucral bracts are narrow lanceolate, the calyx is white, connate at the base, inflated in the middle, with 5 ridges, 5 deep fissures at the top, the lobes are triangular ovate, the Corolla is dark red, and the lobes are oval.
Red calyx dragon spits bead cyme axillary or terminal, calyx is red, corolla is also red.
