Contents
Description
Cathaya is a genus of coniferous trees in the family Pinaceae that is native to China. The genus contains only one species, Cathaya argyrophylla, which is also known as the silver fir. This rare and beautiful tree has been prized by collectors for its unique appearance and interesting history.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Pinophyta |
| Class | Pinopsida |
| Order | Pinales |
| Family | Pinaceae |
| Genus | Cathaya |
Appearance
Cathaya trees can grow up to 40 meters tall and have a conical shape. The bark is smooth and grayish-brown, and the leaves are needle-like and arranged in spirals on the branches. The cones are large, up to 25 cm long, and have a unique shape with protruding bracts. The overall appearance of the tree is striking and makes it a beautiful addition to any landscape.
Care Guide
Cathaya trees require plenty of water and do best in well-draining soil that is rich in organic matter. They prefer full sun but can tolerate partial shade. Fertilize the tree once a year in the spring with a slow-release fertilizer. Cathaya trees are hardy to USDA Zones 7-9 and can tolerate temperatures down to -10°C.
Common Pests & Diseases
Cathaya trees are generally resistant to pests and diseases. However, they can be susceptible to fungal diseases such as root rot and rust. Avoid overwatering and make sure the soil is well-draining to prevent these issues.
Habitat
Cathaya trees are native to China and can be found in the provinces of Sichuan, Yunnan, and Tibet. They grow in mountainous regions at elevations between 1,500 and 3,000 meters.
Question and Answer
Q: Is Cathaya a rare plant?
A: Yes, Cathaya is a rare plant that is highly prized by collectors for its unique appearance.
Q: Where is Cathaya native to?
A: Cathaya is native to China and can be found in the provinces of Sichuan, Yunnan, and Tibet.
Q: What is the hardiness zone for Cathaya trees?
A: Cathaya trees are hardy to USDA Zones 7-9 and can tolerate temperatures down to -10°C.
Q: What kind of soil does Cathaya prefer?
A: Cathaya trees prefer well-draining soil that is rich in organic matter.
Related Plants
- Pinus strobus (Eastern White Pine)
- Abies balsamea (Balsam Fir)
- Picea abies (Norway Spruce)
- Tsuga canadensis (Eastern Hemlock)
References
- Farjon, A. (2010). A Handbook of the World’s Conifers (2 Vols.). Brill Publishers.
- Li, J., & Zhou, Z. (2010). The first fossil record of Cathaya (Pinaceae) from the Miocene of Yunnan, China. Review of Palaeobotany and Palynology, 163(1-2), 1-8.
- Sui, X. L., & Li, J. Q. (2006). Cathaya argyrophylla (Pinaceae), a living fossil. Journal of Integrative Plant Biology, 48(10), 1090-1095.
