# Picea

> genus of evergreen, coniferous tree

**Wikidata**: [Q26782](https://www.wikidata.org/wiki/Q26782)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spruce)  
**Source**: https://4ort.xyz/entity/spruce


## References

1. A new classification and linear sequence of extant gymnosperms
2. Die natürlichen Pflanzenfamilien, 13. Band: Gymnospermae
3. Australian Plant Name Index
4. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=21917)
5. Nuovo soggettario
6. Freebase Data Dumps. 2013
7. Taxonomy database of the U.S. National Center for Biotechnology Information
8. Integrated Taxonomic Information System
9. Encyclopedia of Life
10. Fossilworks
11. Global Biodiversity Information Facility
12. Tropicos
13. GRIN Taxonomy for Plants
14. Flora of North America
15. Database of Vascular Plants of Canada
16. Flora of China
17. United States Department of Agriculture Plants Database
18. Nederlands Soortenregister
19. Flora Reipublicae Popularis Sinicae, volume 7
20. A new list of threatened woody species in China under future global change scenarios
21. A dataset on inventory and geographical distributions of vascular plants in Beijing, China
22. Checklist of tracheophyte in Heilongjiang Province
23. A checklist of vascular plants in Shaanxi Province, China (Version 2021)
24. [eFloras](http://www.efloras.org/flora_page.aspx?flora_id=3)
25. Dyntaxa
26. New Zealand Organisms Register
27. UMLS 2023
28. BDTFX v7.00
29. National Biodiversity Network
30. Quora
31. Plants of the World Online
32. [Portál informačního systému ochrany přírody](https://portal.nature.cz/publik_syst/nd_nalez-public.php?idTaxon=38715)
33. VicFlora
34. World Flora Online
35. National Library of Israel
36. KBpedia
37. GF WordNet
38. Open Tree of Life reference taxonomy version 3.2
39. Washington Flora Checklist
40. Biota of New Zealand