Flower structure of isabgol

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Floral Biology of Isabgol (Plantago ovata)

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P. ovata is an annual herb, a small stem-less plant covered with dense or soft hairy growth. Plant attains a height of 30-45cm. Crop View

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P. ovata is an annual herb, a small stem-less plant covered with dense or soft hairy growth. Plant attains a height of 30-45cm. Crop View

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Leaves are filiform or narrowly linear, 10-20cm long, entire or distantly toothed, attenuated at the base, usually 3-nerved. It has a large number of flowering, shoots arising from the main stem and appearing whorled owing to short terese stem. The Plant Inflorescence

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Leaves are filiform or narrowly linear, 10-20cm long, entire or distantly toothed, attenuated at the base, usually 3-nerved. It has a large number of flowering, shoots arising from the main stem and appearing whorled owing to short terese stem. The Plant

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Inflorescence of P. ovata is a spike made up of many florets. The flowers are sessile, small, bisexual and crowded on the main axis Inflorescence Flowers open in basipetal succession.

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Being protogynous the gynoecium of the bottom most flower mature first, protruding its stigma through the tip of the unopened flower and thus favouring out crossing. The androecium matures latter. Inflorescence Flowers open in basipetal succession.

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Spike is cylindrical, ovate to oblong in shape. It is 1.3-3.8cm long and is borne at the tip of long wooly peduncle that arises from the axile of the leaf. Inflorescence Uprooted Plant

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Inflorescence VIEW 3

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Inflorescence VIEW 4 Stigma coming out

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Inflorescence VIEW 5 Stigma coming out

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The flower possesses four free oblong ovate sepals which is elliptic, obtuse, concave, scarious except midrib which is as broad in the inner as in the outer sepals Inflorescence VIEW 6 Petals Anthers Stigma

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The flower possesses four free oblong ovate sepals which is elliptic, obtuse, concave, scarious except midrib which is as broad in the inner as in the outer sepals, a gamopetalous corolla with a papery tube and spreading limb of four rounded ovate, macronate segments, four exerted stamens with long filaments and largely versatile anthers which dehisce by longitudinal scils-corolla 3mm.long.

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Style is slender, pabillate, excreted with simple stigma. The stigma is single wish a pointed open in the bud; on opening of flower, it splits into two & become receptive as it protrudes out of the bud, reaching up to its open.

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Ovary is superior having two cells. Ovary having two cells Ovary

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Calyx

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ISABGOL Floral Biology © A.K. Chhabra Calyx Calyx 3 mm long, usually glabrous. The flower possesses four free oblong ovate sepals which is elliptic, obtuse, concave, scarious except midrib which is as broad in the inner as in the outer sepals Sepals Sepals

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ISABGOL Floral Biology © A.K. Chhabra Bee Pollination

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ISABGOL Floral Biology © A.K. Chhabra Bee Pollination