Lyonothamnus floribundus ssp. asplenifolius

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Lyonothamnus floribundus ssp. asplenifolius
Lyonothamnus floribundus ssp. asplenifolius

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'

Songbird iconA.jpg Fragrant iconA.jpg Slope iconA.jpg

Care and Maintenance

  • 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
  • Bornstein, Carol, David Fross, and Bart O'Brien. California Native Plants for the Garden. Los Olivos, CA: Cachuma Press. 2005.