What are the characteristics of sunflowers? A detailed guide

Other names for the sunflower

The sunflower is an annual herbaceous plant in the Asteraceae family, also known as "chaoyanghua", "wangrilian" and "taiyanghua". The sunflower's place of origin is South America, and it is currently grown in Europe, Russia, China and other parts of the world.

Morphological characteristics of the sunflower

The sunflower's stem is a thick, upright stem, overall round with multiple angles, and covered with coarse white hairs.

The sunflower's leaves are generally alternate, usually ovate or heart-shaped ovate, with rough hairs on both sides of the leaf blade.

The sunflower's inflorescence is a very large head, borne singly at the end of a branch or at the top of the stem, and usually nods downward when in bloom.

The sunflower's fruit is an obovate or ovate-oblong achene, namely the "sunflower seed", with a lignified pericarp that is black or gray.

Growth habits of the sunflower

Sunflowers can be planted in all four seasons, with summer and winter being the best. Sunflowers grow very quickly; from planting to flowering generally takes only about 2 months, and the longest flowering period is about two weeks or more.

The value and uses of the sunflower

Edible value: Because the sunflower's seeds contain a large amount of oil, they have high edible value. It is a very good oil crop, and can be used both for pressing oil and for stir-frying.

Medicinal value: Many parts of the sunflower plant can be used as medicine, with various effects such as clearing heat and resolving phlegm, dispelling wind and detoxifying, and draining dampness and relieving pain.

Purification value: The sunflower has a greening function of repairing soil; its root system, while absorbing nutrients, can also extract harmful pollutants from the soil.

The sunflower's flower language

The sunflower's first symbolic meaning is "the sun", and it also carries other meanings such as "adoration" and "silent love".