Which species is “Skullcap”?
American skullcap (Scutellaria lateriflora, aerial parts) and Chinese skullcap (S. baicalensis, root — huang qin) are different species, different plant parts, and different traditions — and skullcap commerce carries a documented history of germander adulteration.
The species behind the name
- Skullcap
Scutellaria lateriflora
Scutellaria lateriflora — American skullcap; aerial parts; the Western nervine tradition and the species in the small modern human literature.
- Baical Skullcap
Scutellaria baicalensis
Scutellaria baicalensis (huang qin) — Chinese skullcap; the root, with baicalin-dominant chemistry and its own extensive research record.
- Germander
Teucrium chamaedrys L.
Teucrium chamaedrys (germander) — not a skullcap at all: the documented historical adulterant behind hepatotoxicity reports once attributed to skullcap.
How to tell what a product actually is
- Part is the fastest cue: aerial-parts material is lateriflora territory; root is baicalensis.
- Historical “skullcap” hepatotoxicity was traced to germander (Teucrium) contamination — the classic argument for verified-identity sourcing in this category.
The documented safety difference
The documented risk in this category is misidentification itself: germander-adulterated “skullcap” caused the liver-injury reports of the early literature. Verified species identity is the protective step.
Educational use only. This page explains species identity — it makes no claim that any species works for anything, and it is never a place to decide what to take. It is not a substitute for medical advice. If you take medication, talk to your clinician or pharmacist before adding any botanical, whichever species it turns out to be.