The Guide Biology Classes

Biological Description of Black Cardamom Flower (Amomum subulatum)

1. Classification:

Kingdom: Plantae

Division: Angiosperms

Class: Monocotyledons

Order: Zingiberales

Family: Zingiberaceae

Genus: Amomum

Species: Amomum subulatum

2. Floral Structure:

Inflorescence: Spike-like raceme emerging from the rhizome near the ground.

Flower Color: Whitish to pale pink with a yellow-orange labellum marked with red or purple streaks.

Symmetry: Zygomorphic (bilateral symmetry).

Number of Sepals: 3, fused, forming a tubular calyx.

Number of Petals: 3, with one modified into a large, showy labellum (lip).

Stamens: One functional stamen with a petaloid appendage (two stamens are reduced to staminodes).

O***y: Inferior, trilocular (three-chambered).

Style: Single, passing through the filamentous anther.

Placentation: Axile placentation.

3. Floral Formula:

⚥ ↑ K(3) C(2+1) A1 G(3̅)

Explanation:

⚥ – Bisexual flower (both stamens and carpels present).

↑ – Zygomorphic symmetry.

K(3) – Three fused sepals forming a tubular structure.

C(2+1) – Three petals, with two forming a lateral structure and one forming a labellum.

A1 – One fertile stamen (androecium), while others are reduced to staminodes.

G(3̅) – Inferior o***y with three fused carpels.

4. Pollination and Fruit Development:

Pollination is mostly entomophilous (insect-mediated), primarily by bees.

The flowers develop into capsule-like fruits, which turn reddish-brown to black upon maturation.

The dried fruit is used as a spice known as black cardamom.

This floral structure is adapted for attracting pollinators and ensuring effective reproduction.

Would you like more details on its reproductive biology or economic importance?

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Did you know that Chickw**d (Stellaria media) is more than just a common w**d? Its tiny star-shaped white flowers may look delicate, but this plant is packed with medicinal benefits! 🌱

✅ Anti-inflammatory & cooling properties
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✅ A nutritious edible plant rich in vitamins & minerals

This humble plant blooms year-round, especially in spring and fall. Have you ever spotted chickw**d around you? Share your thoughts in the comments! 👇

**d

Anagallis arvensis (commonly known as Scarlet Pimpernel or Blue Pimpernel).

Floral Structure of Anagallis arvensis
1. Type of Flower:
• Actinomorphic (radially symmetrical).
• Complete, bisexual (having both male and female reproductive organs).
2. Calyx (Sepals):
• Number: 5 sepals.
• Sepals are green, free, and lanceolate (narrow and tapering).
3. Corolla (Petals):
• Number: 5 petals.
• Petals are blue or scarlet in color, free (not fused), and arranged in a regular radial pattern.
• Margins of petals are slightly fringed.
4. Androecium (Stamens):
• Number: 5 stamens.
• Stamens are free and attached to the base of the petals.
• Filaments are hairy.
• Anthers are yellow, bilobed, and produce pollen.
5. Gynoecium (Carpels):
• A single pistil is present.
• O***y: Superior and unilocular (single chamber).
• Style: Long and slender, arising from the o***y.
• Stigma: Capitate (rounded).
6. Inflorescence:
• Solitary axillary (flowers arise singly from leaf axils).
7. Pollination:
• Entomophilous (pollinated by insects).
8. Floral Formula:
⊕ ⚥ K(5) C(5) A5 G(1)
• ⊕: Actinomorphic symmetry.
• ⚥: Bisexual flower.
• K(5): 5 free sepals.
• C(5): 5 free petals.
• A5: 5 stamens.
• G(1): A single carpel with a superior o***y.