Term
| What are the 2 types of secondary compounds that are prevalent in Asteraceae? |
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Definition
1. Alkaloids
2. Sesquiterpene lactones |
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Term
| What is the main storage compound in Asteraceae? |
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Definition
| Inulin (fructose polymer) |
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Term
| 2 industrial uses of Asteraceae: |
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Definition
1. Insecticides (from Chrysanthemum)
2. Rubber (Parthenium) |
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Term
| What is surprising about Helianthus tuberosus? |
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Definition
| Its common name is Jerusalem Artichoke, although it's not from Jerusalem, nor is it an artichoke |
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Term
| Asteraceae is a family that has a high number of __________ but a low number of ___________ |
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Definition
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Term
| 5 uses of Asteraceae plants include: |
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Definition
1. Phytochemicals
2. Oil seeds
3. Ornamentals
4. Edible leaves
5. Edible roots
(POOEE) |
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Term
| A common inflorescence in Asteraceae is: |
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Definition
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Term
| What kind of stamens does Asteraceae have? |
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Definition
| Syngenesious (anthers fused into tube but filaments still separate) |
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Term
| Are Asteraceae flowers sympetalous or epipetalous? |
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Definition
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Term
| What kind of fruit do Asteraceae plants produce? |
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Definition
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Term
| Describe fruit dispersal in Asteraceae: |
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Definition
| Through a pappus, by wind or attachment to animals |
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Term
| What are two advantages of having a capitula inflorescence? |
|
Definition
- large floral display
- landing platform for pollinators |
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Term
| What is an advantage of having a tubular flower? |
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Definition
| Makes pollination efficient (pollinator has a very specific place to go to to get pollen) |
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Term
| What are the 3 main types of flowers in Asteraceae? |
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Definition
1. Tubular (disk florets)
2. Bilabiate (2-lobed)
3. Ligulate (ray floret) |
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Term
| Give an example of a discoid composite of Asteraceae (scientific name of plant) |
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Definition
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Term
| Give an example of a rayed composite of Asteraceae (scientific name of plant) |
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Definition
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Term
| Give an example of a ligulate composite of Asteraceae (scientific name of plant) |
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Definition
| Taraxacum (dandelion)or Cichorium (endive) |
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Term
| What is a receptacular bract? |
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Definition
| Papery/bristly bracts within flowers in the head (of Asteraceae) |
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Term
| What is an involucral bract? |
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Definition
| Bract that surrounds the flower head/receptacle |
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Term
| What are 4 important characteristics to look out for in involucral bracts? |
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Definition
1. Number of rows
2. Differentiation (rows same or outer/inner rows diff)
3. Form (i.e. - spine-tipped, hooked)
4. Fusion |
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Term
| What are the 5 main tribes of Asteraceae?? |
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Definition
1. Senecioneae
2. Lactuceae
3. Anthemideae
4. Cardueae
5. Heliantheae
(SLACH) |
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Term
| What was suggested to be the earliest evolutionary event in the Aster family? |
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Definition
| the split between the Barnadesia group with the rest of the Asteraceae (Barnadesia group is defined by axillary spines of a type unique in the family, and long unicelllular hair) |
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