Hakea Gibbosa

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Hakea gibbosa COMMON NAME Downy hakea FAMILY Proteaceae AUTHORITY Hakea gibbosa Cav. FLORA CATEGORY Vascular – Exotic STRUCTURAL CLASS Trees & Shrubs - Dicotyledons NVS CODE HAKGIB HABITAT Terrestrial. A coastal and lowland plant. Plant grows in low fertility sites. The plant is found in scrub and forest margin, shrubland and gumlands (Timmins & MacKenzie 1995). FEATURES Spreading shrub, hairy in most of its parts. Shoots terete, shaggy villous. Leaves simple, terete, 30~80 x .8~1.5mm, villous at first and some hairs remaining, rigid and spiny. Flowers solitary or few in fascicles. Pedicels 3~5mm long, shaggy villous. Perianth white, sparsely hairy, < pedicel. Ovary stipitate; style glabrous; stigma large, oblique. Fruit 3.7~4.3 x Te Paki. Sep 2008. Photographer: Jeremy Rolfe 3~3.5cm, rugose, shortly beaked. Seed 30~33 x 10~14mm (incl. wing), black; wing extending down both margins. (- Webb et. al., 1988) SIMILAR TAXA Extremely prickly, spreading shrub, hairy in most of its parts. Leaves needle-like and circular in cross section. Has a large woody, beaked seed capsule. Seed winged on both margins. Flowers white, Jun_Aug. can be confused with needlebush (prickly Hakea) - only the shoots of needlebush are hairy. FLOWERING June, July, August FLOWER COLOURS White FRUITING Fruit are always present because follicles persist on trees. YEAR NATURALISED 1937 ORIGIN Te Paki. Sep 2008. Photographer: Jeremy Rolfe NSW ETYMOLOGY gibbosa: From the Latin gibbosus ‘hunch-back, gibbous’, refers to an object more swollen in one place than another, with a pouch-like swelling or hump-like. Reason For Introduction Ornamental Life Cycle Comments Perennial. Germination is poor in unburnt sites, the situation in New Zealand is unknown. Seed The plant produces large amounts of seed. A seed bank is probably not formed (Timmins & MacKenzie 1995). Dispersal Seed is dispersed by wind and gravity. Tolerances The plant is intolerant of shade and frost; slightly tolerant of poor drainage and highly tolerant of drought. Adult plants are resistant to grazing. Fire kills plants but viable seed is released from the follicles. Requires low to medium soil fertility (Atkinson 1997). MORE INFORMATION https://www.nzpcn.org.nz/flora/species/hakea-gibbosa/.

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Winter Edition 2020 - 3 in This Issue: Office Bearers for 2017
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