Moss rose: Portulaca grandiflora is commonly called moss rose, which is quite descriptive of this plant's key ornamental features for being ruffled, rose-like flowers appearing on prostrate to slightly ascending stems that form a moss-like foliage mat.
Ten o'clock: The magical characteristic of this plant is that it seems like it can tell time. This is seen commonly as it blooms in the early morning at ten o'clock, but it is also limited to bright sunlight days. If it is rainy or night time, it will not sprout flowers. Hence, it is called ten o'clock.