Streptopus

Streptopus

Streptopus Michx.
Engl.: twistedstalk.
Sven.: skruvrams.

Streptopus amplexifolius

Streptopus amplexifolius (L.) DC.
Engl.: clasping twistedstalk, claspleaf twistedstalk.
Deu.: Knotenfuss.
Sven.: skruvrams.

Streptopus lanceolatus

Streptopus lanceolatus (Ait.) Reveal.
Engl.: rosy twistedstalk.
Sven.: rosa skruvrams.
Bot. syn.: Streptopus roseus Michx.

Streptopus streptopoides

Streptopus streptopoides (Ledeb.) Frye & Rigg.
Engl.: small twistedstalk.

I have no articles for this botanical term, but there might be some for the next level down (if found).