All the florets may be disc in
1.Tridax
2.Helianthus
3.Launea
4.Vernonia
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All the florets may be ligulate
1.Ageratum
2.Vernonia
3.Launaea
4.Tridax
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An example for decumbent herb is
1.Artemesia maritima
2.Tridax procumbens
3.Vernonia arborea
4.Launeae
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Asteraceae is classified under the subclass
1.Inferae
2.Gamopetalae
3.Rosales
4.Polypetalae
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Disc florets are also called as
1.Tubular florets
2.Ligulate florets
3.Ray florets
4.Florets
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Heterogamous head inflorescence consists of
1.Ray florets only
2.Disc florets only
3.Ray and Disc florets
4.No florets
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Heterogamous head is seen
1.Helianthus annus
2.Zinnia elegans
3.Calendula officinalis
4.Launaea
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Homogamous head has
1.Ligulate florets
2.Tubular florets
3.Both kind of florets
4.Either ligulate or tubular florets
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In Asteraceae inflorescence is
1.Solitary cyme
2.Raceme
3.Spike
4.Capitulum
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In habitat Asteraceae are
1.Mesophytes
2.Xerophytes
3.Both Xerophytes and Mesophytes
4.Hydrophytes
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Launea is a
1.Sucker
2.Tree
3.Climber
4.Runner
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Leaves of Asteraceae are
1.Simple
2.Pinnately or Palmately lobed
3.Compound
4.All the three
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Leaves of Asteraceae are
1.Alternate
2.Opposite
3.Whorled
4.All the three kinds
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Number of genera included under Asteraceae
1.375
2.283
3.950
4.6
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Number of genera of Asteraceae found in South India
1.35
2.45
3.55
4.65
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Number of species included under Asteraceae
1.10000
2.20000
3.30000
4.40000
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Number of species of Asteraceae found in South India
1.100
2.200
3.300
4.400
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Opposite phyllotaxy is seen in
1.Launaea
2.Eupatorium
3.Tridax
4.Chrysanthemum
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Plants of Asteraceae are seen in
1.Tropical countries
2.Temperate countries
3.Subtropical countries
4.World wide
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Receptacle in Asteraceae is
1.Flat
2.Convex
3.Concave
4.All the three types
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Root tubers are present in the genus
1.Tridax
2.Eupatorium
3.Dahlia
4.Vernonia
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Roots and Stems contain oil-ducts in
1.Fabaceae
2.Euphorbiaceae
3.Asteraceae
4.Musaceae
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Roots of Asteraceae are
1.Adventitious
2.Tuberous
3.Without nodules
4.Aerial
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Stem is a sucker in
1.Dahlia
2.Vernonia
3.Chrysanthemum
4.Launaea
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The head is reduced to a single flower in
1.Echinops
2.Helianthus
3.Tridax
4.Chrysanthemum
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The largest family of flowering plants is
1.Fabaceae
2.Asteraceae
3.Euphorbiaceae
4.Musaceae
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Type of inflorescence in Asteraceae
1.Homogenous head
2.Heterogenous head
3.Both 1 and 2
4.Spadix
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Vernonia shevrayensis is a
1.Root tuber
2.Tree
3.Climber
4.Shrub
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Whorled phyllotaxy is seen in
1.Eupatorium
2.Launaea
3.Tridax
4.Dahlia
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