Multiple Choice QuestionsWhen the margins of sepals or petals overlap one another without any particular direction, the condition is termed as
vexillary
imbricate
twisted
twisted
Keel is the characteristic feature of flower of
Tulip
Indigofera
Aloe
Aloe
B.
Indigofera
Keel is petal is vexillary aestivation, which is a characteristic of family - Fabaceae, i.e. Indigofera tomato belongs to family - Solanaceae, tulip and while aloe to Liliaceae.
Papilionaceae (e.g. Indigofera, pea) is sub-family of Fabaceae, which has bilateral symmetry with corolla consist of 5 petals. It follows vexillary aestivation. A single upper posterior petal is known as banner. Two lateral compressed petals called wings and a pair of anterior small fused petal forms keel. Keel has concave sides which make them fused at bases. 
Hence, keel is the characteristic feature of flower of family - Papilionaceae. e.g. Indigofera.
The hilum is a scar on the
seed, where funicle was attached
fruit, where it was attached to pedicel
fruit, where style was present
fruit, where style was present
The hilum is a scar on the
seed, where funicle was attached
fruit, where it was attached to pedicel
fruit, where style was present
fruit, where style was present
is the floral formula of
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