# Penstemon cardinalis var. regalis

> variety of plant

**Wikidata**: [Q42675917](https://www.wikidata.org/wiki/Q42675917)  
**Source**: https://4ort.xyz/entity/penstemon-cardinalis-var-regalis


## References

1. Nomenclatural novelties and notes in Penstemon (Plantaginaceae).
2. Global Biodiversity Information Facility
3. International Plant Names Index
4. Plants of the World Online
5. World Flora Online