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Questions and Answers
What is the shape of the involucre in German Chamomile?
What is the shape of the involucre in German Chamomile?
- Lanculate (correct)
- Elliptical
- Cordate
- Ovate
What is the color of the disc florets in German Chamomile?
What is the color of the disc florets in German Chamomile?
- Yellow (correct)
- Purple
- Red
- White
What is the number of syngenesious stamens in German Chamomile?
What is the number of syngenesious stamens in German Chamomile?
- 3
- 6
- 5 (correct)
- 4
What is the type of corolla present in the disc florets of German Chamomile?
What is the type of corolla present in the disc florets of German Chamomile?
Which part of the disc florets is absent in German Chamomile?
Which part of the disc florets is absent in German Chamomile?
Where are the palae situated in relation to the florets?
Where are the palae situated in relation to the florets?
What is one of the internal uses of the plant?
What is one of the internal uses of the plant?
What is another name for the property of the plant that stimulates appetite and digestion?
What is another name for the property of the plant that stimulates appetite and digestion?
Which of the following is NOT a use of the plant?
Which of the following is NOT a use of the plant?
What is the shape of the bracts and palae?
What is the shape of the bracts and palae?
What is another benefit of using the plant?
What is another benefit of using the plant?
Where are the palae found in relation to the florets?
Where are the palae found in relation to the florets?
What is the shape of the apex of the bracts and palae?
What is the shape of the apex of the bracts and palae?
What feature do the bracts and palae have?
What feature do the bracts and palae have?
What is the feature that runs along the center of the bracts and palae?
What is the feature that runs along the center of the bracts and palae?
What type of florets are present in abundance in the given composition?
What type of florets are present in abundance in the given composition?
What is the function of the involucre in the composition?
What is the function of the involucre in the composition?
What is distinctive about the pollen grains in the composition?
What is distinctive about the pollen grains in the composition?
What is the purpose of the receptacle in the composition?
What is the purpose of the receptacle in the composition?
What is absent from the composition?
What is absent from the composition?
What is a characteristic feature of the corolla?
What is a characteristic feature of the corolla?
What is the primary compound found in the esters of the plant?
What is the primary compound found in the esters of the plant?
Which of the following is not a type of ester found in the plant?
Which of the following is not a type of ester found in the plant?
What is the shape of the papillae found on the corolla?
What is the shape of the papillae found on the corolla?
What are the active constituents of the plant?
What are the active constituents of the plant?
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Study Notes
Morphology
- Involucre: green, lanculate, glabrous bract with blunt apex
- Bracts and paleae: oblong-ovate with blunt apex, central keel, and wide margin
- Paleae: situated in the axils of the florets
Flowers
- Disc florets: yellow, hermaphrodite, no calyx, tubular corolla
- Stamens: 5, syngenesious
- Gynoecium: present
Uses
- Internal uses: carminative, aromatic, bitter stomachic
- Pharmacological uses: anti-inflammatory, diuretic
- Stimulates: appetite, digestion, sleep
- Treats: colitis, diverticulosis, fever, headaches, pain
- Use as nerve tonic
Microscopy
- Diagnostic elements: numerous spiny pollen grains
- Corolla: showing rounded papillae
Active Constituents
- Esters of chrysanthemic acid: pyrethrin I, jasmolin I, cinerin I
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