Still, there are many winners in the family rosaceae if you know what to look for.
From the ocregister.com
Rosaceae seeds contain cyanogenic glycosides, and avocados contain persin which are both toxic compounds to birds.
From the en.wikipedia.org
Rosaceae is an economically important group of plants that comprises more than 3,000 species, including strawberry, apple, peach and pear.
From the sciencedaily.com
Flowering quince is typically found as a stand-alone shrub or hedge and, like many other members of the rosaceae family, often has sharp thorns that can easily scratch the skin.
From the ocregister.com
More examples
A large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens
The Rosaceae or rose family is a large family of flowering plants, with about 2830 species in 95 genera.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website Version 9, June 2008 http://www.mobot.org/mobot/research/apweb/welcome.html The name is derived from the type genus Rosa. ...