![](images/66a.jpg) Hairy nightshade
Black nightshade. Note short calyx
Photo courtesy Dean Swan, Washington State University (retired)
Hairy nightshade with calyx cupping the berry.
Photo courtesy Dean Swan, Washington State University (retired)
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- Climbing nightshade (Solanum dulcamara), also known as bittersweet: perennial with long branches trailing or climbing on other plants; lance-shaped leaves lobed at the base; bluish-purple flowers; immature green berries turning bright red
- Hairy nightshade (Solanum sarrachoides): annual to 0.6 metres tall; white flowers; dense covering of short hairs on leaves and stems; yellowish-brown berries at maturity; calyx cupped 2/3 around berry
- Black nightshade (Solanum nigrum): annual to 0.9 metres tall; white flowers; smooth leaves; black to dark purple berries at maturity; short calyx does not cup the berry
- young plants and immature berries are particularly poisonous
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