Seeds of South Australia
Hibiscus sturtii var. sturtii (Malvaceae)
Hill Hibiscus
List of species for Hibiscus
Display more images
Click on an image to enlarge it
Herbarium regions:
North Western, Lake Eyre
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Sturt Stony Desert (CHC02)Channel Country
 Rare   (IUCN: RA d(i,ii))   [edge of range]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Hibiscus]
Name derivation:
Hibiscus from the Latin 'hibiscum' which is from the Ancient Greek 'hibiskos' a name for mallow-like plant and possibly used by the physician Dioscorides for marshmallow plant. Sturtii named after Captain Charles Napier Sturt (1795-1869), a British explorer of Australia.
Distribution:
Found in the far northern part of South Australia, growng on ocky or gravelly ranges and breakways. Also found in the Northern Territory, Queensland and New South Wales.
Status:
Native. Rare in South Australia. Uncommon in the northern Territory. Common in the other states.
Plant description:
Erect or spreading perennial subshrub to about 50 cm high. Leaves grey to grey-green, ovate to lanceolate or oblong-lanceolate, to 5 cm long, apex obtuse, covered in dense stellate-hairs. Inflorescence solitary with purple, pink or white flower. This variety differ from the other three varieties found in South Australia by  having the epicalyx (extra segments or 'bracteoles' immediately below the calyx) segments 7 or 8, linear, triangular or ovate, united at the base into a cup. Flowering possible throughout the year.
Fruit type:
Hairy, brown papery globular capsule to 10 mm long, with the calyx conspicuous and splayed outward.
Embryo type:
Folded.
Seed collecting:
Collect capsules that are drying off and starting to turn brown. The seed inside should be brown and hard.
Seed cleaning:
Place the capsules into a tray and leave to dry for a week. Then rub the capsules by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).