Helianthus 
Flora Frost Helianthus tuberosus
| Leaf arrangement | crosswise opposite |
| Leaf tip | Pointed/acute |
| Flower type | Single |
| Leaf margin | Serrate |
| Flower scent | Unscented |
| Flower color | Yellow |
| Leaf, general shape | Ovate (egg-shaped) |
| Flower diameter | 7,5 - 8 cm; 8 - 8,5 cm |
| Plant height | 1,8 - 2 m; 20 - 30 cm |
| Inflorescence | Capitulum (head) |
| Leaf width | 5 - 7,5 cm |
| Leaf surface | Hairy |
| Leaf size | 10 - 15 cm |
| Leaf division | Simple |
| Leaf, main color | Green-medium brown green-137C |
| Leaf colour, pattern | Unicolored |
| Flower color distribution | Unicolored |
The sunflower, scientifically known as Helianthus tuberosus, is a marvel of nature with its stunning yellow flowers and ovate-shaped leaves. This tall plant can reach heights of 1.8 to 2 meters, providing a beautiful sight in gardens and fields.
One of the distinguishing features of the sunflower is its crosswise opposite leaf arrangement. The leaves have a pointed or acute tip, giving them an attractive shape. They measure around 10 to 15 cm in size and have a width of 5 to 7.5 cm. The leaf margin is serrate, adding a textured appearance to the plant.
The sunflower's leaves have a green-medium brown color, specifically identified as green-137C. They are unicolored, meaning they do not have patterns or variegation on their surface. However, they are covered in a fine layer of hair, contributing to their overall texture.
The sunflower's flowers are single and have a diameter of about 7.5 to 8 cm or 8 to 8.5 cm, depending on the variety. The flower color is a vibrant yellow, bringing a burst of sunshine to any garden. Interestingly, despite their beauty, sunflowers are unscented, as they do not produce any floral fragrance.
The flowers are arranged in inflorescences called capitulums or heads. This structure adds to their appeal, creating a captivating display when multiple flowers bloom together. The flower color distribution is unicolored, with the entire petal being a consistent shade of yellow.
Sunflowers are plants that can thrive in various environments and are beloved for their versatility and beauty. They are often grown for ornamental purposes but are also cultivated for their nutritious tubers. These tubers can be harvested and used as a delicious addition to many culinary dishes.
In conclusion, Helianthus tuberosus, or the sunflower, is a remarkable plant with its ovate leaves, vibrant yellow flowers, and impressive stature. Its crosswise opposite leaf arrangement, serrated margins, and hairy surface add to its allure. Whether enjoyed in gardens or harvested for its tubers, the sunflower is a captivating addition to any landscape.
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