Burrobush

Ambrosia dumosa

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Ambrosia
Species:
Ambrosia dumosa
USDA Symbol:
AMDU2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Subshrub
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar,apr,may,jun
Bloom Colors:
green, yellow

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Animomyia morta, Carolella beevorana, Omnivorous Leafroller (Platynota stultana), Schinia dobla, southern emerald (Synchlora frondaria)

Garden & Ecology Notes

Wildlife Value:
small mammals, desert birds, browsed by herbivores
Salt Tolerant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
sandy, nutrient-poor, well-drained soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Common in desert environments, adapted to arid conditions

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds germinate readily after rainfall without pretreatment. Warm temperatures and moisture trigger germination in desert conditions.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are soaked/leached in water for 10 to 24 hrs to remove any inhibitors and allow full imbibition of seeds prior to sowing. In some cases, seeds are not treated prior to sowing.

Establishment: Seeds are hand collected either in May of the previous year or when achenes have fully matured. Ambrosia dumosa is found in the Mojave and Sonoran deserts of CA, Nevada, Utah, Arizona and northern Baja California, and the western edge of the Colorado desert in southern California and Arizona.

Source: npn.rngr.net