Lyonothamnus floribundus ssp. asplenifolius
From California Natives Wiki
Species Name: Lyonothamnus floribundus ssp. asplenifolius
Common Name: Santa Cruz Island Ironwoood
- Year-round interest. Attractive bark, fern-like foliage. White flower clusters in summer, aging to orange-rust in summer. Prefers good drainage. Beautiful in groves. Rare, threatened by grazing.
- Plant Family: Rosaceae
- Plant Type: Tree
- Height by Width: 15-35' H x 15' W
- Growth Habit: Tall, upright, spreading
- Deciduous/Evergreen: Evergreen
- Growth Rate: Fast
- Sun Exposure: Full sun
- Soil Preference: Adaptable
- Water Requirements: Drought-tolerant to occasional
- Cold Hardy to: 35 degrees F
- Flower Season: Summer
- Flower Color: White
- Endangered?: List 1B/RED 2-2-3
- Distribution: Channel Islands (Santa Cruz, San Clemente, Santa Rosa Islands)
- Natural Habitat: Rocky slopes, canyons, oak woodland, chaparral from 66- 1650'
- Care and Maintenance
- History
- From California Native Plants, Theodore Payne's 1941 catalog: "A rare and beautiful tree from the islands off the cost of Southern California. Rich green fern-like foliage and large terminal clusters of small white flowers. Ideal as a specimen tree, adding a decided note of interest and beauty wherever used. Requires good drainage. Gallon cans, $1.00; 5 gallon cans, $2.50."
- Other Names
- References
- Bornstein, Carol, David Fross, and Bart O'Brien. California Native Plants for the Garden. Los Olivos, CA: Cachuma Press. 2005.
- Links

