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Image Credit: Rob Wiltshire – Natural Values Atlas
Scientific Name: Hibbertia acicularis
Common Name: prickly guineaflower
Family Classification (Clade): Eudicots
Family: Dilleniaceae
Form Description: Dwarf prickly shrub with needle-like leaves; may be erect or sprawling.
Height (m): 0.3 – 0.6
Flowers: Yellow, solitary on slender stalks 1-2 cm long; size extremely variable, 0.8-1.5 cm across.
Fruit: Seed follicles – seeds brown and shiny with jagged aril.
Municipality
Plant Communities
Habitat Notes
Common in sandy heaths.
Site Tolerance
Moist, Rocky
Soil Tolerance
Nutrient-poor, Sandy, Well-drained
Frost Tolerance
Moderate
General Notes
Susceptible to Phytophthora cinnamomi.
Propagation Calendar
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Flowering Month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -
Seed Collecting Month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -
Sowing Month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -
Cutting Month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Propagation Method
Seed Information
Seed Collection
Very difficult to propagate from seed. Seeds shed very quickly after maturity; collection is difficult and time consuming and only a few viable seeds are produced which often are predated by insects. Viable seeds are dark in colour, enclosed by a pulpy aril; non-viable seeds are lighter in colour and weight and aril is brittle.
Seed Treatment Method
Smoke Smoke treatment improves germination in some species. Smokey products, e.g. smokey vermiculite, can be purchased and applied to the sown seed, or sown seeds can be treated directly with smoke from a source such as a drum with a fire and hose.
Seed Storage Life
1-2 years
Seed Treatment Notes
Difficult to germinate from seed; germination rate may be improved slightly by smoke treatment.
Germination Time
1-3 months
Cutting & Division Information
Cuttings strike easily if taken from firm, vigorous growth. New growth is produced from woody rootstock after fire.