Coreopsis Trivia Questions and Answers

a close up of a butterfly on a flower

1: What is the common name for plants in the genus Coreopsis?
A: Calliopsis
B: Sunflower
C: Daisy
D: Rose
Correct Answer: A
Explanation: Calliopsis is one of the common names for Coreopsis, also known as tickseed.

2: Coreopsis plants typically grow to what maximum height?
A: 10 cm
B: 25 cm
C: 47 cm
D: 60 cm
Correct Answer: C
Explanation: Coreopsis plants range from 46 to 120 centimeters in height.

3: How many species of Coreopsis are there approximately?
A: 10-15
B: 20-25
C: 75-80
D: 100-120
Correct Answer: C
Explanation: There are about 75 to 80 species of Coreopsis.

4: Coreopsis belongs to which plant family?
A: Rosaceae
B: Fabaceae
C: Liliaceae
D: Asteraceae
Correct Answer: D
Explanation: Coreopsis is a genus in the Asteraceae family.

5: What shape are the fruits of Coreopsis plants?
A: Spherical
B: Flat and dry
C: Round and juicy
D: Triangular and fleshy
Correct Answer: B
Explanation: The fruits of Coreopsis are flat and dry and resemble insects.

6: Coreopsis is native to which continents?
A: Africa and Asia
B: Europe and Australia
C: North and South America
D: Antarctica and Asia
Correct Answer: C
Explanation: Coreopsis species are native to North, Central, and South America.

7: The genus name Coreopsis is derived from Greek words meaning what?
A: Sun-flower
B: Love-flower
C: Bedbug-view
D: Bee-flower
Correct Answer: C
Explanation: The name Coreopsis is derived from Greek words meaning “bedbug” and “view.”

8: In what year were Coreopsis species designated the state wildflower of Florida?
A: 1985
B: 1991
C: 2000
D: 2010
Correct Answer: B
Explanation: All Coreopsis species were designated the state wildflower of Florida in 1991.

9: Coreopsis flowers are predominantly what color?
A: Blue
B: Red
C: Yellow
D: Purple
Correct Answer: C
Explanation: Coreopsis flowers are usually yellow, sometimes yellow-and-red bicolor.

10: Which Coreopsis species are especially popular in cultivation?
A: C. grandiflora and C. verticillata
B: C. palmata and C. tripteris
C: C. tinctoria and C. auriculata
D: C. rosea and C. lanceolata
Correct Answer: A
Explanation: C. grandiflora and C. verticillata are notable species commonly found in cultivation.

11: Coreopsis plants are a source of food for which insects?
A: Butterflies only
B: Bumblebees and dragonflies
C: Bees and caterpillars
D: Spiders and beetles
Correct Answer: C
Explanation: Coreopsis species provide nectar and pollen for bees and other insects, and are also food for caterpillars of some Lepidoptera species.

12: What gardening practice helps prevent Coreopsis from becoming weedy?
A: Watering frequently
B: Pruning the leaves
C: Deadheading the flowers
D: Adding fertilizers
Correct Answer: C
Explanation: Deadheading the flowers ensures Coreopsis does not become weedy.

13: Which section of Coreopsis has species specifically native to South America?
A: Calliopsis
B: Eublepharis
C: Leavenworth
D: Pseudoagarista
Correct Answer: D
Explanation: The section called Pseudoagarista contains species native to South America.

14: Which Coreopsis species have a toothed yellow flower tip?
A: Coreopsis stillmanii
B: Coreopsis bicolor
C: Coreopsis lanceolata
D: Coreopsis verticillata
Correct Answer: B
Explanation: Coreopsis bicolor has a toothed yellow flower tip.

15: What is one of the common cultivation preferences for Coreopsis?
A: Well-drained soil
B: Waterlogged soil
C: Shady areas
D: Cold temperatures
Correct Answer: A
Explanation: Coreopsis plants prefer well-drained soil for optimal growth.

16: What type of plants can Coreopsis be classified as in a home garden?
A: Trees
B: Shrubs
C: Border plants
D: Vines
Correct Answer: C
Explanation: Coreopsis can be grown as border plants or in containers in a home garden.

17: What is the language of flowers meaning for general Coreopsis?
A: Love
B: Fortune
C: Always cheerful
D: Wisdom
Correct Answer: C
Explanation: In the language of flowers, Coreopsis means “to be always cheerful.”

18: What is one of the notable features of Coreopsis flower heads?
A: Spherical bracts
B: Connate involucral bracts
C: Spiny petals
D: Fragrant scent
Correct Answer: B
Explanation: Coreopsis flower heads have involucral bracts that are connate (fused) at the base.

19: Which Coreopsis section consists of the greatest number of species?
A: Section Calliopsis
B: Section Coreopsis
C: Section Pseudoagarista
D: Section Leptosyne
Correct Answer: C
Explanation: The section Pseudoagarista consists of 35 species, mainly in South America.

20: Coreopsis can often be found growing wild in which regions of North America?
A: Along coasts
B: In dense forests
C: Along roadsides and open fields
D: In dry deserts
Correct Answer: C
Explanation: Coreopsis can often be found growing along roadsides and open fields in Eastern North America.

21: Which insects are often seen visiting Coreopsis flowers in the Mid-Atlantic region?
A: Beetles and hornets
B: Ants and butterflies
C: Bees, hover flies, and wasps
D: Moths and dragonflies
Correct Answer: C
Explanation: In the Mid-Atlantic region, bees, hover flies, and wasps are frequently observed visiting Coreopsis flowers.

22: Which Coreopsis species is known as plains coreopsis?
A: Coreopsis bicolor
B: Coreopsis tinctoria
C: Coreopsis major
D: Coreopsis gigantea
Correct Answer: B
Explanation: Coreopsis tinctoria is commonly known as plains coreopsis.

23: In which type of USDA hardiness zone can Coreopsis be grown?
A: Zone 1-2
B: Zone 3-4
C: Zone 7a/6b
D: Zone 9-10
Correct Answer: C
Explanation: Coreopsis are suited for growing in USDA hardiness zone 7a/6b.

24: Which Coreopsis species is also referred to as the goldenmane tickseed?
A: Coreopsis grandiflora
B: Coreopsis basalis
C: Coreopsis linifolia
D: Coreopsis verticillata
Correct Answer: B
Explanation: Coreopsis basalis is known as the goldenmane tickseed.

25: What is the botanical genus closest in relation to Coreopsis?
A: Rosa
B: Bidens
C: Echinacea
D: Sunflower
Correct Answer: B
Explanation: Coreopsis is closely related to the genus Bidens.

26: When was Coreopsis reclassified to exclude African species?
A: 1800
B: 1936
C: 1955
D: 2000
Correct Answer: B
Explanation: In 1936, Coreopsis was reclassified to exclude African species.

27: What does the genus Coreopsis mainly provide for insects?
A: Habitats
B: Nectar and pollen
C: Shelter
D: Seeds
Correct Answer: B
Explanation: Coreopsis species are a source of nectar and pollen for insects.

28: Which Coreopsis species is referred to as the woodland tickseed?
A: Coreopsis palmata
B: Coreopsis tripteris
C: Coreopsis pulchra
D: Coreopsis major
Correct Answer: C
Explanation: Coreopsis pulchra is known as the woodland tickseed.

29: In the scientific classification, which clade do Coreopsis plants belong to?
A: Angiosperms
B: Gymnosperms
C: Bryophytes
D: Pteridophytes
Correct Answer: A
Explanation: Coreopsis belongs to the clade Angiosperms.

30: Which flower has showy heads with involucral bracts arranged in two distinct series?
A: Daisy
B: Marigold
C: Coreopsis
D: Hibiscus
Correct Answer: C
Explanation: Coreopsis flowers have showy heads with involucral bracts in two distinct series.

31: Who contributed to the naming of Coreopsis?
A: Linnaeus
B: Darwin
C: Hooker
D: Wallace
Correct Answer: A
Explanation: The genus Coreopsis was named by Carl Linnaeus.

32: What characteristic makes the fruits of Coreopsis resemble insects?
A: Their color
B: Their shape
C: Their size
D: Their texture
Correct Answer: B
Explanation: The shape of the fruits of Coreopsis makes them look like insects.

33: Which section of Coreopsis is hybridized mainly for ornamental cultivation today?
A: Section Anathysana
B: Section Eublepharis
C: Section Leptosyne
D: Section Coreopsis
Correct Answer: D
Explanation: Section Coreopsis has many species and hybrids popular in ornamental cultivation.

34: What region has an exclusive Coreopsis sect. Pseudoagarista group?
A: South America
B: Central Europe
C: Southeastern Asia
D: Australia
Correct Answer: A
Explanation: Section Pseudoagarista is an exclusively South American group.

35: Which Coreopsis species has a pink coloration?
A: Coreopsis grandiflora
B: Coreopsis rosea
C: Coreopsis stillmanii
D: Coreopsis gladiata
Correct Answer: B
Explanation: Coreopsis rosea is known for its pink flowers.

36: What method can be used to identify the preferred growth conditions of Coreopsis cultivars?
A: Checking pH levels
B: Observing plant height
C: Using the USDA hardiness zones
D: Measuring leaf size
Correct Answer: C
Explanation: USDA hardiness zones help identify the preferred soil and climate for different Coreopsis cultivars.

37: Which Coreopsis species is known as Leavenworth’s tickseed?
A: Coreopsis cyclocarpa
B: Coreopsis leavenworthii
C: Coreopsis paludosa
D: Coreopsis bicolor
Correct Answer: B
Explanation: Coreopsis leavenworthii is commonly known as Leavenworth’s tickseed.

38: Coreopsis is grown for what primary reason in gardens?
A: Shade
B: Fragrance
C: Attracting butterflies
D: Edible flowers
Correct Answer: C
Explanation: Coreopsis is popularly planted in gardens to attract butterflies.

39: Which insect larvae are known to feed on Coreopsis species?
A: Coleophora acamtopappi
B: Monarch caterpillars
C: Tomato hornworms
D: Ladybug larvae
Correct Answer: A
Explanation: The larvae of Coleophora acamtopappi feed on Coreopsis species.

40: Which Coreopsis species is known for its double sphere-shaped flower heads?
A: Coreopsis tripteris
B: Coreopsis delphiniifolia
C: Coreopsis gladiata
D: Coreopsis verticillata
Correct Answer: D
Explanation: Coreopsis verticillata has double sphere-shaped flower heads.

41: What unique characteristic does Coreopsis gigantea possess compared to other species?
A: It is much taller
B: It blooms at night
C: It has fragrant leaves
D: It has edible flowers
Correct Answer: A
Explanation: Coreopsis gigantea is known for its unusually tall stature.

42: Which Coreopsis species is also referred to as the sea dahlia?
A: Coreopsis verticillata
B: Coreopsis palustris
C: Coreopsis maritima
D: Coreopsis tinctoria
Correct Answer: C
Explanation: Coreopsis maritima is also called the sea dahlia.

43: Coreopsis flowers often feature which distinctive feature on their tips?
A: Spikes
B: Smooth edges
C: Toothed tips
D: Hair-like bristles
Correct Answer: C
Explanation: Coreopsis flowers typically have toothed tips.

44: In which botanical clade are Tracheophytes classified?
A: Bryophytes
B: Gymnosperms
C: Angiosperms
D: Pteridophytes
Correct Answer: C
Explanation: Tracheophytes, or vascular plants, are classified under the clade Angiosperms.

45: Which Coreopsis species are known to have yellow-and-red bicolor flowers?
A: Coreopsis paludosa
B: Coreopsis gigas
C: Coreopsis bicolor
D: Coreopsis whitecaps
Correct Answer: C
Explanation: Coreopsis bicolor is known for having yellow-and-red bicolor flowers.

46: Which classification system is used to describe Coreopsis amongst 11 sections?
A: GRIN
B: LINN
C: BIOS
D: SIAM
Correct Answer: A
Explanation: The classification system GRIN is used to describe Coreopsis in 11 sections.

47: Which Coreopsis section consists of primarily Mexican and North American species?
A: Section Pseudoagarista
B: Section Calliopsis
C: Section Eublepharis
D: Section Leptosyne
Correct Answer: C
Explanation: Section Eublepharis includes species from Mexico and North America.

48: Which Coreopsis species is nicknamed the crown tickseed?
A: Coreopsis grandiflora
B: Coreopsis nuecensis
C: Coreopsis floridana
D: Coreopsis hamiltonii
Correct Answer: B
Explanation: Coreopsis nuecensis is commonly known as the crown tickseed.

49: How did Coreopsis earn the name related to insects?
A: Flower shape
B: Leaf structure
C: Fruit appearance
D: Root system
Correct Answer: C
Explanation: The fruits of Coreopsis resemble bedbugs, hence its name origin.

50: Which Coreopsis species is known as the Georgia tickseed?
A: Coreopsis cuneifolia
B: Coreopsis nudata
C: Coreopsis rosea
D: Coreopsis intermedia
Correct Answer: B
Explanation: Coreopsis nudata is referred to as the Georgia tickseed.

51: Which Coreopsis section includes species like Coreopsis grandiflora?
A: Section Coreopsis
B: Section Calliopsis
C: Section Leptosyne
D: Section Pseudoagarista
Correct Answer: A
Explanation: Coreopsis grandiflora belongs to Section Coreopsis.

52: Which Coreopsis species has been observed to attract bees, hover flies, and wasps?
A: Coreopsis grandiflora
B: Coreopsis verticillata
C: Coreopsis gladiata
D: Coreopsis stillmanii
Correct Answer: B
Explanation: Coreopsis verticillata is commonly visited by bees, hover flies, and wasps.

53: In which year was Coreopsis historically classified into 11 sections and 114 species?
A: 1920
B: 1936
C: 1956
D: 1980
Correct Answer: B
Explanation: Coreopsis was classified into 11 sections and 114 species in 1936.

54: Coreopsis is mainly cultivated for which purpose?
A: Producing edible fruits
B: Decorative floral arrangements
C: Providing wood for furniture
D: Soil erosion control
Correct Answer: B
Explanation: Coreopsis is mainly used in decorative floral arrangements and garden aesthetics.

55: Which Coreopsis species is known for being stiff and hardy?
A: Coreopsis bicolor
B: Coreopsis grandiflora
C: Coreopsis palmata
D: Coreopsis douglasii
Correct Answer: C
Explanation: Coreopsis palmata is known as the stiff tickseed due to its hardiness.

56: Coreopsis is part of which biological order?
A: Rosales
B: Asterales
C: Fabales
D: Lamiales
Correct Answer: B
Explanation: Coreopsis belongs to the order Asterales.

57: How is the genus Coreopsis defined in terms of its genetic composition?
A: Monophyletic
B: Polyphyletic
C: Paraphyletic
D: Allopatric
Correct Answer: C
Explanation: Coreopsis is best described as paraphyletic.

58: Which Coreopsis species is referred to as the Rio Grande tickseed?
A: Coreopsis grandiflora
B: Coreopsis nuecensoides
C: Coreopsis rosea
D: Coreopsis tripteris
Correct Answer: B
Explanation: Coreopsis nuecensoides is known as the Rio Grande tickseed.

59: What does the specific name “arkansa” in Coreopsis arkansa suggest in the language of flowers?
A: Longevity
B: Love at first sight
C: Kindness
D: Wisdom
Correct Answer: B
Explanation: Coreopsis arkansa stands for “love at first sight” in the language of flowers.

60: Which feature of Coreopsis flowers can help in their identification in botanical studies?
A: Leaf size
B: Pollen color
C: Flower head structure
D: Root depth
Correct Answer: C
Explanation: The structure of Coreopsis flower heads, particularly the involucral bracts, is helpful for identification.

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