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Wasowski, Sally and Andy
Cercocarpus montanus var. glaber
Cercocarpus montanus Raf. var. glaber (S. Watson) F.L. Martin
Smooth Mountain Mahogany, Birchleaf mountain mahogany, Hard tack, Birch-leaf mountain-mahogany
Synonym(s): Cercocarpus betuloides, Cercocarpus betuloides var. betuloides, Cercocarpus betuloides var. multiflorus
USDA Symbol: cemog
USDA Native Status: L48 (N)
Hard tack, a variable, open shrub or small tree, grows from 8-20 ft. tall. Twigs may be stiff and erect or graceful and spreading. Bark is smooth gray. Birch-like, semi-evergreen to evergreen leaves are dark green, and inconspicuous flowers are followed by feathery seedheads that turn the plant silver in fall.
Plant CharacteristicsDuration: Perennial Habit: Tree Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May
, TX Native Distribution:
to Baja CA,
e. to AZ. Disjunct populations in W. TX. Native Habitat:
Dry slopes & washes below 6000 ft.
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Rocky, clay, or sandy soils.
Conditions Comments: Nitrogen-fixing and good for revegetation and erosion control. Drought-tolerant. Volunteer seedlings can be expected when well-established.
PropagationDescription: Propagation is possible with untreated seed.
Seed Collection: Collect seeds as soon as the fruits are dry. This is usually indicated by a white aspect to the fruiting branches. Avoid exposure of skin to the hairy, white styles.
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
- Briggs, TX
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CA
Record Last Modified: 2013-10-03
Research By: TWC Staff