Spotted Emu Bush

Eremophila maculata is endemic to Australia and has one of the widest natural distributions of any species in the genus.

• Native range spans arid and semi-arid regions across multiple Australian states, including New South Wales, Queensland, South Australia, and the Northern Territory
• Found in a variety of inland habitats from sandy plains to rocky outcrops and dry creek beds
• The genus Eremophila is almost entirely restricted to the Australian continent, with the vast majority of species occurring in Western Australia

Australia's arid interior has driven the evolution of remarkable drought-adapted flora:
• Eremophila species have diversified extensively in response to Australia's increasing aridity over the past 15 million years
• The genus is considered a hallmark example of adaptive radiation in Australia's drylands

Eremophila maculata is a low, spreading to erect shrub typically growing 0.5 to 2.5 meters tall, with a similar spread.

Stems & Branches:
• Branches may be sticky (viscid) due to resinous secretions, particularly in some subspecies
• Young stems are often hairy, becoming smoother with age

Leaves:
• Arranged alternately along the stems
• Linear to narrow-elliptic, typically 1–5 cm long and 2–7 mm wide
• Margins entire (smooth-edged); surfaces may be glabrous or sparsely hairy
• Leaves are often resinous and aromatic when crushed

Flowers:
• Tubular, bilaterally symmetrical (two-lipped), borne singly or in small clusters in leaf axils
• Color highly variable — may be red, pink, orange, yellow, cream, or greenish, often with distinctive darker spots or blotches inside the throat (giving rise to the name "maculata," meaning "spotted")
• Corolla tube typically 20–30 mm long, with five lobes
• Five stamens, usually enclosed within the corolla tube
• Flowering can occur in almost any month, with peaks often following rainfall

Fruit:
• Fleshy drupe, ovoid to nearly spherical, approximately 5–8 mm long
• Color ranges from yellowish to reddish-brown when mature
• Contains a hard endocarp (stone) enclosing the seeds

Eremophila maculata thrives in the harsh conditions of Australia's arid and semi-arid interior.

Habitat:
• Sandy or loamy soils on plains, dunes, and along dry watercourses
• Rocky hillsides and gibber plains (stony desert surfaces)
• Often found in open woodland, shrubland, and grassland communities

Drought Adaptations:
• Deep and extensive root systems to access subsurface moisture
• Resinous leaf coatings that reduce water transpiration
• Ability to shed leaves during extreme drought (drought-deciduous behavior in some populations)
• Thick cuticle on leaves to minimize water loss

Pollination & Seed Dispersal:
• Tubular flowers are adapted for pollination by birds (particularly honeyeaters) and native bees
• Fleshy fruits are consumed by birds and mammals, which disperse the seeds
• Seeds may remain dormant in the soil for extended periods, germinating after significant rainfall events

Some Eremophila species are known to contain bioactive compounds and have been reported to be toxic to livestock, particularly cattle and sheep, when consumed in large quantities.

• Eremophila maculata has been associated with livestock poisoning in some arid grazing regions
• Toxic compounds may include sesquiterpene lactones and other resinous substances
• Livestock generally avoid browsing emu bush unless other forage is scarce
• The resinous nature of the foliage acts as a natural deterrent to herbivory

Eremophila maculata is widely cultivated as an ornamental shrub in arid and semi-arid landscapes around the world, valued for its drought tolerance, attractive spotted flowers, and low maintenance requirements.

Light:
• Full sun is essential for best growth and flowering
• Tolerates partial shade but flowering will be reduced

Soil:
• Requires well-drained soil; tolerates sandy, loamy, and rocky substrates
• Adaptable to alkaline and slightly saline soils
• Does not tolerate waterlogged or heavy clay soils

Watering:
• Extremely drought-tolerant once established
• Supplemental watering during prolonged dry periods can encourage flowering
• Overwatering is the most common cause of failure in cultivation

Temperature:
• Tolerates extreme heat and mild frosts (down to approximately -5°C to -7°C depending on provenance)
• Not suited to humid tropical conditions

Propagation:
• Readily propagated from semi-hardwood cuttings, which strike root relatively easily
• Can also be grown from seed, though germination may be slow and erratic without pre-treatment
• Some cultivars are grafted onto hardy rootstock for improved vigor

Pruning:
• Responds well to light pruning after flowering to maintain shape and encourage bushy growth
• Avoid heavy pruning into old wood, as recovery may be slow

Eremophila maculata and related species have a range of traditional and contemporary uses.

Aboriginal Traditional Uses:
• Various Eremophila species have been used by Aboriginal Australians for medicinal purposes for thousands of years
• Leaf preparations have been used as topical applications for skin conditions and wounds
• Infusions of leaves were used as washes and for treating colds and other ailments

Horticultural Uses:
• Widely planted in xeriscaping and water-wise gardens in arid regions globally
• Used as a low hedge, groundcover, or feature shrub in dryland landscaping
• Attracts nectar-feeding birds and native pollinators to gardens

Ecological Restoration:
• Used in revegetation projects in degraded arid lands due to its hardiness and soil stabilization properties