Nelson Bay Native Plants
Photographic reference of Australian plants native to the Tomaree Peninsula

How to Tell Apart the Two Local Hakeas

On the Tomaree Peninsula, two prickly hakeas can look remarkably similar at first glance: Hakea sericea and Hakea gibbosa. Both are tough Australian shrubs with narrow, sharp-tipped leaves, pale flowers and hard woody fruits. They occur in the same broad coastal landscape, so location alone is rarely enough for a confident identification.

The most reliable approach is to compare several features at once. Leaf texture, bark, flower arrangement, fruit shape and the type of vegetation surrounding the plant usually provide a clearer answer than any single photograph. This is especially useful around Nelson Bay, Shoal Bay, Anna Bay and the headlands where heath, woodland and sandy coastal vegetation meet.

Start with the plant’s overall habit

Hakea sericea, commonly called silky hakea, is usually an upright, open shrub that may reach around two to four metres. Its branches can appear rather fine, particularly when the plant is growing in exposed heath or open woodland. Young growth may have a soft, silky appearance, giving the species its common name, although older leaves become much less obviously hairy.

Hakea gibbosa, known as corkbark hakea, often looks stockier and more rugged. It commonly forms a dense, rounded shrub, though wind exposure, fire history and browsing can alter its shape. Older stems frequently develop thick, corky or rough bark, a useful clue when flowers and fruits are absent. A plant with strongly textured bark deserves a closer look for H. gibbosa.

Neither species should be identified by height alone. Coastal wind, salt spray and poor sandy soil can keep both shrubs low and compact, while plants in sheltered bushland may grow taller. Record the whole habit, including whether branches are erect, spreading or tangled.

Examine the leaves closely

The leaves of both local hakeas are narrow, rigid and sharply pointed. They are more like stiff cylindrical needles than ordinary flat leaves, an adaptation that reduces water loss and helps the shrubs tolerate dry, exposed conditions. Gloves are sensible when handling a specimen, particularly near popular walking tracks where a sudden prick can spoil a field survey.

Hakea sericea often has slender leaves with a relatively smooth, silky or fine-haired appearance when young. The foliage can look delicate from a distance, although the tips are very sharp. Hakea gibbosa also has needle-like leaves, but its foliage may appear coarser, more robust or more strongly crowded along the branches. Texture can vary with age, so compare several mature leaves rather than relying on one shoot.

A hand lens can reveal useful detail. Note whether the leaf surface is obviously hairy, whether the leaves are evenly cylindrical, and how densely they cover the branch. Photographing a whole branch beside a close-up of several leaves provides much better evidence than a flower-only image.

Use the flowers as seasonal evidence

Both species produce pale flowers, often white to cream and sometimes with a pinkish cast. They are generally associated with the cooler months and can be seen from late autumn through winter into spring, depending on rainfall and local conditions. The flowers may be fragrant, attracting insects and adding interest to a walk through coastal heath.

Flowering time is helpful but not decisive. A flowering hakea in June or July could belong to either species, and plants in warm, sheltered parts of Port Stephens may flower at a slightly different time from those on wind-battered headlands. Look at how the flowers are positioned: they arise from the leaf axils, along older wood or around the branches, rather than forming a large terminal display like some garden shrubs.

Seasonal observation also prevents confusion with broad-leaved plants that change appearance through the year. Hakeas are evergreen, so their foliage remains present while many Australian shrubs and trees alter colour or shed leaves. A visual reference to autumn colour can help place these evergreen shrubs within the wider seasonal pattern of native vegetation.

The fruit is often the strongest clue

Mature fruit is usually the most useful feature for separating these two species. Hakea sericea generally produces woody follicles that are comparatively smooth or only lightly textured, with a clear beak at the end. They are often egg-shaped to broadly oval and remain attached to the branches after flowering has finished.

Hakea gibbosa develops more conspicuously rough, warty or corky fruits. These follicles can look heavily ridged or covered with blunt projections, matching the rugged character suggested by its common name. The fruit is also often a valuable clue when the shrub is not flowering. Examine several fruits, because immature follicles may be smaller and less distinctive.

The hard capsules open when mature or after environmental triggers such as heat. Their winged seeds can move away from the parent plant, linking hakea reproduction with the wider dynamics described in wind-dispersed seeds. Do not collect fruit from reserves or national parks without permission; photographs and location notes are safer and more useful for a public botanical record.

Bark and habitat complete the picture

Corky bark strongly favours Hakea gibbosa, especially on older stems. Look for a rough, thickened surface rather than assuming that every brown or fissured stem belongs to this species. Hakea sericea may also develop textured older bark, but it is less characteristically cork-like.

Habitat can support an identification. Hakea sericea is associated with dry sclerophyll woodland, heath and sandy or rocky ground across parts of eastern Australia. Hakea gibbosa also occupies heath and woodland, including coastal settings, so the surrounding vegetation must be considered alongside the fruit and bark. On the Tomaree Peninsula, note whether the plant is growing among banksias, tea-trees, kunzea, grass trees or low coastal shrubs.

Fire history matters as well. Many hakeas persist through fire by releasing seed from woody capsules, while the post-fire vegetation community can make a familiar species look unfamiliar. A recently burnt site may contain seedlings and resprouting shrubs rather than mature fruiting plants, so identification should remain cautious until more features are visible.

A practical field comparison

A simple comparison method works well during bushwalks. First photograph the entire shrub from a short distance. Then capture the bark, a leafy branch, flowers if present, and several mature fruits. Include a scale such as a ruler, coin or walking pole, but avoid placing objects against plants in sensitive areas.

Use a field notebook or phone record to note the date, approximate location, soil or substrate, plant height and nearby vegetation. Australian native plant identification is more reliable when observations are repeated across seasons rather than based on one visit. Local conditions around Nelson Bay can change quickly with rain, drought, salt exposure and fire.

Field marks worth recording

Check names against local references

Scientific names are preferable to common names because common names vary between states and communities. Record the genus with a capital letter, the species with a lower-case letter, and keep the spelling exact: Hakea sericea or Hakea gibbosa. A photograph labelled only “prickly hakea” may be difficult for another observer to verify.

PlantNET and herbarium records are valuable for checking descriptions, distribution and taxonomic updates. The Nelson Bay Native Plants reference brings together photographs and habitat information for species recorded on the Tomaree Peninsula, making it particularly useful for comparing local plants rather than relying on images from distant parts of Australia.

Local provenance also matters in gardening and bush regeneration. Native plant nurseries around Port Stephens, Newcastle and the wider Hunter region may stock hakeas for water-wise gardens, habitat planting or screening, but a nursery label should still be checked against the plant’s mature fruit and growth habit. Choosing locally appropriate species supports wildlife and reduces the risk of introducing plants unsuited to the site.

Careful identification helps protect the value of the landscape. Walkers can enjoy these striking shrubs, students can build accurate plant records, and land managers can distinguish local hakeas from other prickly members of the Australian flora without damaging living specimens.