ASTERACEAE Flashcards

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1
Q

which is the largest family of dicots?

A

Asteraceae

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2
Q

stems contain

A

trichomes

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3
Q

tuberous roots are present in

A

dahlia

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4
Q

flowers are arranged in

A

acropetal/ centripetal order

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5
Q

flowers in this inflorescense is called

A

florets

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6
Q

ray florets are usually

A

zygomorphic and unisexual; androecium is absent

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7
Q

calyx in ray florets

A

pappus/ scaly, persistent

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8
Q

corolla is ray florets

A

petals 5 and gamopetalous

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9
Q

androecium in ray florets

A

absent

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10
Q

gynoecium in ray florets

A

bicarpellary, syncarpous, epigynous, unilocular, basal placentation

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11
Q

disc florets

A

bisexual, actinomorphic

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12
Q

calyx

A

pappus

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13
Q

corolla in disc florets

A

petals- 5 and gamopetalous

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14
Q

androecium

A

5 stamens, epipetalous, syngenesious, dithecous

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15
Q

gynoecium

A

bicapellary, syncaprous, epigynous, unilocular, basal placentation

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16
Q

fruit

A

cypsela

17
Q

sunflower

A

Helianthus annus

18
Q

marigold

A

Targetus erectus

19
Q

carrot grass

A

parthenium

20
Q

santonin drug is prepared from

A

artemesia annua

21
Q

red dye used for dyeing silk is obtained from

A

Carthamus tinctorius

22
Q

insecticide obtained from chrysanthemum

A

pyrethrum