큰금계국-[정명] Coreopsis lanceolata L.

Coreopsis lanceolata, commonly known as lanceleaf coreopsis, lanceleaf tickseed, lance-leaved coreopsis, or sand coreopsis, is a North American species of tickseed in the family Asteraceae.

Description

Coreopsis lanceolata is a perennial plant sometimes attaining a height of over 60 cm (2 ft). The plant produces yellow flower heads singly at the top of a naked flowering stalk, each head containing both ray florets and disc florets. Each flower measures 5–8 cm (2–3 in) across. Basal leaves are typically narrow, lance-shaped, and 5–15 cm (2–6 in) long with smooth margins. They have thin petioles that are 3–10 cm (1–4 in) long. Leaves higher up the stem are sessile and may be unlobed or pinnately lobed. The stem leaves are opposite and generally appear only on the lower half of the stem. After flowering, the ray florets are replaced by brown achenes that are 3 mm (0.1 in) long and 3 mm (0.1 in) across.

 

Coreopsis lanceolata - Wikipedia

https://youtu.be/H4h3yxeEkO4?t=89