Dalmatian it is the same
Pyrethrum is used as a pesticide.
Charles B. Gnadinger has written: 'Pyrethrum flowers' -- subject(s): Insecticides, Pyrethrum, Pyrethrum (Insecticide), Pyrethrum (Plant)
no
Pyrethrum is produced from the herb feverfew. Pyrethrum does kill ants and other insects by producing a toxic effect when it reaches the insects nervous system.
The scientific or taxonomic name would be Pyrethrum roseum = C. coccineum.
Chamomile
21 petals
Chamomile is called "chingu kuttan" in Malayalam. While, this is a "catch-all" term for chamomile, it actually refers more specifically to German Chamomile.
A pest-killer that contains naturally occurring mineral or plant derivatives describes a botanical pesticide. The pesticides in question also have the synonymous names natural and organic insecticides. An example is the pyrethrum derived from dried flower heads of Chrysanthemum cinerariifolium (Dalmatian chrysanthemum) or of Chrysanthemum coccineum (painted daisy).
It is doubtful that you can get a dalmatian for free.
No.