Cyclamen

What is cyclamen?

Cyclamen is a genus comprising more than 20 species of flowering perennial herbs belonging to the primrose family (Primulaceae). Native to the Middle East and parts of Europe, these plants are characterized by their growth from a tuber and their lack of an above-ground stem.¹

The most well-known variety is the florist’s cyclamen (Cyclamen persicum), a popular indoor plant prized for its vibrant flowers, which range from white and pink to deep red. Other species, such as the ivy-leaved cyclamen, are commonly cultivated outdoors. A unique feature of the plant is that after flowering, the flower stalk often twists into a spiral, pulling the fruit toward the ground.¹

What is a tuber and how does it help plants grow?

A tuber is a specialized, thickened stem that typically grows underground. Largely composed of starch-storing parenchyma tissue, tubers serve as vital storage organs for both food and water.²³⁴

Tubers help plants survive and grow in several ways:

• Overwintering and Survival: By storing energy, tubers allow plants to enter a resting stage, enabling them to survive harsh conditions such as extended winters or periods of drought such as extended winters or periods of drought.²⁴
• Vegetative Reproduction: As modified stems, tubers bear minute scale leaves, each featuring a bud—often called an “eye” in potatoes. Under the right conditions, these buds can develop into new, independent plants.²⁵⁴
• Growth Initiation: The stored nutrients provide the necessary energy for the plant to resume growth after dormancy.⁴

It is important to distinguish true tubers from “tuberous roots,” such as those found in dahlias or sweet potatoes. While both are fleshy storage organs, only true tubers are modified stems capable of vegetative reproduction.⁴

Which other plants belong to the primrose family?

The Primulaceae family, commonly known as the primrose family, is a diverse group containing 58 genera and nearly 2,600 species of flowering plants. While cyclamen is a well-known member, the family includes a wide variety of other plants ranging from herbs and shrubs to lianas and trees.⁶

Some of the major genera within this family include:

• Primula: The largest genus, containing 500 to 600 species, including garden primroses and shooting stars.⁶
• Ardisia: A large genus comprising about 450 species.⁶
• Androsace: Includes approximately 160 species.⁶
• Myrsine: Contains 155 species.⁶
• Lysimachia: Includes about 150 species, such as creeping Jenny and yellow loosestrife.⁶
• Anagallis: A smaller genus of 28 species, which includes the scarlet pimpernel.⁶

The family also incorporates several other genera such as Maesa, Discocalyx, Embelia, Parathesis, Stylogyne, Clavija, Jacquinia, and Samolus. Many of these plants are valued as garden ornamentals due to their distinct floral characteristics.⁶

How do plants like cyclamen reproduce using their fruit?

The reproductive process of Cyclamen involves a unique mechanism related to its fruit. After the plant has flowered, the flower stalk typically twists into a spiral shape. This movement serves to bring the capsular fruit down toward the ground, positioning it close to the soil surface.⁸

While the provided information details this specific movement of the fruit, it does not explicitly describe the subsequent dispersal or germination process beyond this positioning. The fruit itself is a capsule containing many seeds.¹