Characteristic Features of Asteraceae
Characteristic features of Asteraceae are:
- Composite flower heads: Asteraceae is characterized by inflorescences composed of multiple small flowers grouped together into a dense head, known as a capitulum or flower head.
- Alternate leaves: Leaves are arranged alternately along the stem and may vary widely in shape and size among different species.
- Phyllaries: Asteraceae flower heads are surrounded by a ring of modified leaves called phyllaries, which protect the developing flowers.
- Ray and disk florets: The flower head consists of two types of florets: ray florets, located on the periphery and resemble petals, and disk florets, forming the central disk.
- Fruit: Asteraceae fruits are usually achenes, which are small, dry, one-seeded fruits that do not split open at maturity.
- Milky sap: Many Asteraceae species produce a milky or resinous sap, which can be toxic or irritating to humans and animals.
- Pollination: Asteraceae flowers attract a wide range of pollinators, including bees, butterflies, and flies, with their bright colors and abundant nectar.
- Economic importance: Asteraceae includes many economically important plants, such as sunflowers, lettuce, chamomile, and dandelion, which are cultivated for food, medicine, and ornamental purposes.
Asteraceae – Angiosperm Family
Asteraceae, commonly known as the aster, daisy, or sunflower family, is one of the largest plant families characterized by composite flower heads and alternate leaves. It includes a wide variety of economically important plants, such as sunflowers, daisies, and dandelions. Members of this family are used for food (lettuce, artichokes), medicine (chamomile, arnica), and ornamental purposes. Their ecological importance lies in providing nectar and habitat for pollinators, contributing to biodiversity and ecosystem health.
Asteraceae
Table of Content
- What is Asteraceae?
- Biological Classification of Asteraceae
- Diagram of Asteraceae
- Characteristic Features of Asteraceae
- Asteraceae Common Name
- Features of the Flowers
- Floral Formula of Asteraceae
- Examples of Asteraceae
- Economic Importance of Asteraceae