Cleistocactus
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Cleistocactus is a genus of flowering plants in the cactus family Cactaceae, native to mountainous areas - to 3,000 m - of South America. The name comes from the Greek kleistos meaning closed because
Cleistocactus strausii Woolly Torch, Huntington Desert Garden
Cleistocactus baumannii
Cleistocactus brookeae 1PAKAL
Cleistocactus buchtienii 2
Gynoecium
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Gynoecium is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower. It
Cleistocactus
…In most species, the flowers appear in large numbers individually from the areoles. The flowers are tubular and the tips hardly open with only the style and stamens usually protruding. In some species (from the earlier genera Borzicereus and Cephalocleistocactus) they appear from conspicuous zones of…
Flower of Magnolia × wieseneri showing the many pistils making up the gynoecium in the middle of the flower
Hippeastrum flowers showing stamens, style and stigma
Hippeastrum stigmas and style
Moss plants with gynoecia, clusters of archegonia at the apex of each shoot.