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**Hint:**Trimerous flowers have floral appendages or whorls in threes, like three petals, three sepals, etc. In axile placentation, the placenta is present in axial position and the ovules are attached to in a multilocular ovary.

__Complete answer:__Trimerous flower, superior ovary, and axile placentation, all these are characteristic of ‘Liliaceae’. It is generally known as the lily family. The plants owned by this family are monocotyledonous plants. They are extensively distributed worldwide.

__Additional information:__Vegetative characters:

-Habit: Perennial herbs with underground bulbs, corms, and rhizomes

-Adventitious, fibrous are present,

-Stem: Aerial or underground, herbaceous or woody

-Leaves are mostly basal, alternate, linear, and exstipulate with the parallel venation.

Floral characters:

-Solitary/cymose type of inflorescence

-The flower is Bisexual and showing actinomorphic symmetry (radial symmetry).

-Perianth: Tepal six (3+3), often united into a tube with valvate aestivation

-Androecium: Stamen six, (3+3)

-Gynoecium: Tricarpellary, syncarpous with the superior ovary, trilocular with many ovules

-Axile placentation is seen.

-Fruit: Capsule

-Endospermic seeds are present.

Economic importance:

-Young shoots and root tubers of Asparagus species are cooked.

-Aloe is a source of medicine.

-Gloriosa and Tulip are ornamental flowers.

-Colchicum autumnale yields colchicine which is used in doubling the chromosomes.

**So, the correct answer is ‘Liliaceae’.**

**Note:**

-In cymose inflorescence, the main axis or peduncle terminates into a flower and hence shows a limited growth.

-In valvate aestivation, the margin of sepals or petals, present in a whorl just touches each other. There is no overlapping between the sepals or petals.

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