What is the difference between trailing lantana and common lantana? How to tell them apart

I. Differences in appearance

Trailing lantana is a shrub, growing about 0.7 to 1 m tall, with drooping branches.

Common lantana is an upright or trailing shrub, taller and larger than the former, about 1 to 2 m tall, sometimes vine-like, reaching about 4 m in length. Both stems and branches are four-angled, usually with short, hooked prickles.

II. Differences in leaves

The leaves of trailing lantana are ovate, about 2.5 cm long, with an abruptly narrowed base and coarsely toothed margins.

The leaves of common lantana are ovate to oblong, and the leaves are also broader and larger, about 3-8.8 cm long and about 1.5-5 cm wide, with acuminate or acute tips, cordate bases, and bluntly toothed margins.

III. Differences in flowers

Trailing lantana has head-like inflorescences, about 2.5 cm in diameter, with relatively long peduncles; the flowers are pale purplish-red, about 1.2 cm long, and the bracts are broadly ovate.

The inflorescences of common lantana are about 1.5-2.5 cm in diameter; the corolla is orange-yellow or yellow, turning deep red shortly after blooming, and the bracts are lanceolate.