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13 Cards in this Set
- Front
- Back
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Asteraceae:
Plant habit |
Herb
Shrub Vine Tree |
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Asteraceae:
Inflorescence type |
head (capitatum)
...which is subtended by an involucre of phyllaries (Figure 9.39 on pg. 383) |
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Asteraceae:
What are the 3 Perianth/Corolla types? |
Bilabiate - Corolla bilateral with a short tube having upper and lower lips.
Disk - Corolla radial with short to elongate tube bearing 5 teethlike or elongate lobes. Ray (Lingulate) - Corolla bilateral with generally short tube having elongate, flat, extension bearing 3-5 apical teeth. |
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Asteraceae:
Special term for calyx? Modified how? |
Calyx is called a pappus
Modified as scales, awns, or capillary bristles. (Sometimes Pappus is absent) |
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Asteraceae:
Androecium/Stamen fusion |
Syngenesious
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Asteraceae:
Ovary position |
inferior
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Asteraceae:
Placentation |
single, *basal* ovule
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Asteraceae:
Fruit type |
Multiple of achenes
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Asteraceae:
FLORAL FORMULA |
K: 0 - infinity
C: (5) or (3) A: (5) G: (2); inferior |
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What is an alternate name for the Asteraceae?
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Compositae
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Asteraceae:
What are the 3 general head (capitulum) types we have to know? |
1) Discoid - Only disk flowers. All bisexual.
2) Radiate - Central (bisexual or male) disk flowers and peripheral (female or sterile) ray flowers. 3) Lingulate - All ray flowers (typically with 5-toothed corollas apices) |
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Define:
Chaff |
Bracts subtending flowers
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Asteraceae:
Name some ways this family is economically important. Name one species that is economically important. |
Food - Cynara scolymus (artichoke)
Ornamental cultivars Species used locally or industrially. |
