초콜릿데이지-Berlandiera lyrata Benth

국표에는 없다.

Berlandiera lyrata, with the common names chocolate flower, chocolate daisy, or lyreleaf greeneyes, is a North American species of flowering plant in the sunflower family. The common name lyreleaf greeneyes is a reference to the shape of the leaf, which is curved like a lyre and the green disc which is left behind when the ray florets drop off which is thought to look like an eye.

Description

The flower head is approximately 1.0 inch (2.54 cm) in diameter, with yellow ray florets and which grows with an "airy habit." The leaves are pinnately lobed or scalloped. In areas that freeze, the flowers bloom at night from spring until frost. When the plant freezes, it will "seem to disappear" with the roots alive, but dormant in the soil. In frost-free areas, it will bloom year-round. Around mid-morning, the flowers close or drop. The process of the flower head losing the ray florets is due to a change in temperature: as it gets hotter, the flower begins to turn white and then the ray florets begin to drop, leaving the green disc shape. The plant grows to be about 1–2 feet (30–60 cm) in height.

Berlandiera lyrata - Wikipedia

 

By Melburnian - Self-photographed, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=7591673