Question

Keel is characteristic of the flower of:
A) Bean
B) Gulmohar
C) Cassia
D) Calotropis

Answer 1

Keel is a characteristic feature of the flowers of family Papilionaceae. Keel is the innermost melded and fused petals, additionally called the carina. The keel is covered by the petals called wings which are themselves covered by a petal called standard or vexillum hunt.

Complete answer:
The subfamily Faboideae, likewise called Papilionoideae (named a family, Fabaceae or Papilionaceae,), is the biggest group of legumes, comprising around 475 genera and almost 14,000 species assembled in 14 tribes.

The Bean, or Legume, Family is one of the most well-known plant family lawn naturalists are probably going to experience. A portion of the family's most popular species incorporate garden beans and peas, clover, lupine, vetch, wisteria, and hay, just as redbud.

The top petals of Bean Family blossoms are called standards. Having two wings is likewise common in Bean Family blossoms. Wings are essentially the side petals, which some of the time spread away from the bloom like wings.

Bean Family flowers commonly have their two base petals grown together along one side framing a structure somewhat like a thin, narrow yet deep scoop. This exceptional Bean Family sort of two-in-one petal is known as the keel, similar to the keel of a boat.

Thus, the correct answer is option ‘A’, i.e. Bean.

Note: The Standard Blossom, has radial symmetry. Such flowers are frequently supposed to be regular. The other kind of bloom is one in which there's just a single way to chop it down the middle to get a perfect mirror image. Objects shaped like this bilateral symmetry, and flowers with bilateral symmetry are unpredictable and irregular.