Common sunflower - Wikipedia
The common sunflower (Helianthus annuus) is a species of large annual forb of the daisy family Asteraceae. The common sunflower is harvested for its edible oily seeds, which are often eaten as a snack food.
Sunflower | Description, Uses, & Facts | Britannica
2024年11月12日 · The common sunflower (H. annuus) is an annual herb with a rough hairy stem 1–4.5 metres (3–15 feet) high and broad, coarsely toothed, rough leaves 7.5–30 cm (3–12 inches) long arranged in spirals.
Common Sunflower - US Forest Service
There are 52 species of sunflowers, all native to North America and Mexico. This sunflower is 1 to 3 meters (ca. 39 to 118 inches) tall (cultivated forms often taller). The stem is stiff, and usually coarsely hairy (see photo D), often more than 2.5 centimeters (1 inches) in diameter.
Sunflowers: Planting, Growing, and Caring for Sunflowers
With bright blooms that go all summer, sunflowers are heat-tolerant, resistant to pests, and attractive to pollinators. Harvest the seeds in late summer and fall for a healthy snack, or feed them to the birds! Learn how to plant, grow, and care for sunflowers.
Helianthus - Wikipedia
The best-known species is the common sunflower (Helianthus annuus). [6] This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions and some tropical regions, as food crops for humans, cattle, and poultry, and as ornamental plants. [7]
Helianthus annuus (Common Sunflower) - Gardenia
Helianthus annuus (Common Sunflower) is a tall, fast-growing annual with broad, oval to heart-shaped, roughly hairy leaves. It produces huge, brilliant flowers in summer, up to 12 in. across (30 cm), with yellow petals surrounding a dark chocolate central disk.
Helianthus Annuus, Common Sunflower - a Complete Guide …
The common sunflower, helianthus annuus is amazing. Everything you need to know, history, anatomy, how to grow, health benefits, symbolism, art, culture and
How to Grow and Care for Sunflowers - The Spruce
2024年8月26日 · Sunflowers (Helianthus annuus) are treasures of summertime. These low-maintenance plants typically begin blooming in the midsummer and can persist into early fall. The flowers, which stretch around three to six inches across on average, have a broad central disk surrounded by short, yellow petals.
Sunflower - Helianthus annuus | Kew
The common sunflower has a green erect stem covered in coarse hairs, growing on average around 2m tall. The leaves are broad, with serrated edges, and are alternately arranged on the stem. The ‘flower’ of the common sunflower is actually a pseudanthium, or flowerhead, made up of many small flowers.
Helianthus annuus (Common Sunflower, Sunflower, Wild Sunflower…
Common Sunflower is and annual in the Asteraceae (daisy) family. It ommonly seen growing along roads, fences, fields, and in waste areas west of the Mississippi River and is the state flower of Kansas.