# Ryszard Siwecki

> Polish botanist and dendrologist (1939-2002)

**Wikidata**: [Q20829512](https://www.wikidata.org/wiki/Q20829512)  
**Source**: https://4ort.xyz/entity/ryszard-siwecki


## References

1. Czech National Authority Database
2. Polish Science
3. Virtual International Authority File