Home
›
Myricaceae
›
Morella
›
Morella californica (California wax-myrtle, Pacific bayberry)
Native range: West Coast of N. America
Leaves:
- alternate
- simple
- leaves extend from all sides of branch
- lanceolate to oblong-lanceolate
- nearly entire to coarsely but remotely serrate to crenate waxy leaves
- densely gland-dotted
- glands colorless to black on stems and both sides of leaves
- pubescent on underside
- aromatic when crushed
Flowers:
- inflorescence – rounded clusters
- red when young
- hairy stigmas
- females with short style enclosed by bract
- flower clusters develop at ends of branches and in leaf axils
- male, female, and bisexual flowers may be found on one spike
Fruit:
- drupe
- nearly spherical
- 4-8 mm long
- purple-black
- warty
- may be waxy
Other characteristics:
- evergreen shrub
Relevant info:
- grows well in sandy soil
- fruit pulp yields wax used to scent candles and perfumes
- fruit of some specimen of this species have lower content of aromatic wax and may appear purple-black rather than white
- formerly known as Myrica californica
- originally assigned to Myrica by Chamisso, German botanist who published materials on the flora of Mexico with colleague Schlechtendal, in 1831
- re-classified to Morella, another species in the same family, by American botanist R. L. Wilbur in 1994
Ecology & Adaptations:
- native to the Pacific Coast and coastal valleys from southern British Columbia to central California
- in Washington, southern half of the outer coast
- at low eleveations (<500 m)
- found in sandy, moist areas
- coastal conifer forests, bogs, sand dunes, stream banks, wet meadows, marshes, low, moist hillsides
- vegetative reproduction – re-sprouts from root crown following disturbance, resulting in multi-stemmed shrub growth-form
- pollination by wind
- seed dispersal by birds, which remove the wax coating as the fruits pass through their guts, which permits germination
- drought tolerance & herbivore/insect protection – waxy substance in leaves that is produced by glands helps prevent water loss and protects against microorganism infection and insect herbivory
- herbivory and microbial defense – aromatic compounds released when leaves are crushed serve as defenses against herbivory and microbial infection
- tolerates low nutrient conditions (e.g., sandy substrates):
- hosts nitrogen-fixing bacteria in root nodules
- evergreen leaves maximize investment in photosynthetic structures
- fire tolerance via re-sprouting from root crown
- adapted to wetlands:
- closely related species (Myrica gale) produces proportionately more below-ground than above-ground tissue when soil is saturated
- major lateral roots become semi-vertical with increasing water-table depth
- root nodules are more abundant in wetter soils
- nodule roots extend above surface of saturated soils, which increases oxygen uptake