Punarnava is Boerhavia diffusa, and its English common name, spreading hogweed, is rather less poetic than the Sanskrit.
What the name says
Diffusa means spread out, which describes a plant that runs flat across the ground rather than standing up. The English name adds nothing flattering, and the plant is often treated as a weed where it grows.
A weed with a lexicon entry
That is not unusual in the materia medica. A plant that comes back reliably and grows everywhere is exactly the sort of thing a tradition learns to use, and its Sanskrit name records the returning rather than the weediness.
The family
Boerhavia belongs to Nyctaginaceae, covered in the family guide.
On the label
Punarnava Capsules name Boerhavia diffusa.
Frequently Asked Questions
Is spreading hogweed the same as Punarnava?
Yes, it is the English common name for Boerhavia diffusa.
What does diffusa mean?
Spread out, describing the growth habit.
Is it related to giant hogweed?
No. The common name is shared but the plants are unrelated.
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