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It looks more like the common daisy than other pyrethrums do. Its flowers, typically white with yellow centers, grow from numerous fairly rigid stems. Plants have blue-green leaves and grow to 45 to 100 cm (18 to 39 in) in height. The plant is economically important as a natural source of pyrethrin insecticides.
The conspicuous daisy-like flowers are up to 20 millimetres (3 ⁄ 4 in) across, borne in lax corymbs. The outer, ray florets have white ligules and the inner, disc florets are yellow and tubular. It spreads rapidly by seed, and will cover a wide area after a few years. [3] [4] The plant produces achene fruit, and grows in stony slopes and ...
It is called the Dalmatian chrysanthemum or Dalmatian pyrethrum, denoting its origin in that region of Europe (Dalmatia). It looks more like the common daisy than other pyrethrums do. Its flowers, typically white with yellow centers, grow from numerous fairly rigid stems. Plants have blue-green leaves and grow to 45 to 100 cm (18 to 39 in) in ...
Tanacetum is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. [5] They are known commonly as tansies. [4] [5] [6] The name tansy can refer specifically to Tanacetum vulgare, which may be called the common tansy or garden tansy for clarity. [6]
Pyrethrum extracted of the Persian chrysanthemum (painted daisy) was already imported to central Europe from Georgia in the middle of the 19th century. Most of the world's supply of pyrethrin and C. cinerariaefolium today comes from Kenya , which produces the most potent flowers.
Anacyclus is a genus of plants in the family Asteraceae described by Linnaeus in 1753. [5] [6] Annuals or herbaceous perennials, they are cultivated for their fern-like leaves on creeping, radiating stems and daisy-like flowers. They are frost-hardy but may tolerate winter temperatures below −5 °C (23 °F) if grown in well-drained soil.
The plant is 30–90 centimetres (12–35 in) high and wide, which grows as a perennial herbaceous or slightly woody plant on the ground. The stems stand upright. The stems stand upright. The leaves are broad ovate in outline and wedge-shaped in the petiole, the length of the leaves is more than 150 mm (6 in).
Anacyclus pyrethrum, the pellitory, Spanish chamomile, Mount Atlas daisy, bertram, or Akarkara, is a species of flowering plant in the daisy family Asteraceae. [4] It is native to Mediterranean Europe and parts of North Africa, but also naturalised in other parts of Europe, India and Pakistan. [5]
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