Question

The inflorescence present in Euphorbia is?

• A. Cyathium
• B. Verticillaster
• C. Capitulum
• D. Helicoid cyme

Answer 1

The correct option is A

Cyathium

The correct option is A.

Explanation for the correct option:

1. Under ideal circumstances, inflorescences of the typical Euphorbia type are produced all year round.
2. A single female flower with three styles is surrounded by five groups of male flowers, each with a single style, in a structure known as a cyathium (fused bracts that create a cup), a single anther, and five nectar glands.

Explanations for the incorrect options:

Option B:

1. As with many labiates, verticillaster is a mixed inflorescence made up of two highly condensed, practically sessile cymes grouped along an axis to resemble actual verticils.
2. This floral form is typical of the Lamiaceae (Labiatae) family.
3. Examples of typical plants are Ocimum, Coleus, Mentha, etc.

Option C:

1. A sunflower's inflorescence, known as a capitulum, consists of multiple florets arranged in a spiral.
2. A female flower and many male flowers are enclosed in a cup-shaped cluster of modified leaves in an inflorescence.
3. It looks like a solitary flower.
4. For instance, the poinsettia

Option D:

1. A determinate inflorescence is a fiddle-neck helicoid cyme in which the flowers grow on one side of the axis and cause the inflorescence to curve.
2. A cyme is a cluster of flowers where each growing point ends in a flower; hence, side shoots provide new growth while the oldest flowers are found at the top.
3. When flowers are borne in whorled inflorescences, rings of blooms are spaced out along the stalk.
4. Hamelia, Drosera, Myosotis, etc. are a few examples of helicoid cyme.
5. Geranium pratense is used as an example.

Final answer: The inflorescence present in Euphorbia is cyathium.