Seeds of South Australia
Crepis vesicaria ssp. taraxicifolia (Compositae)
Bladder Hawksbeard
List of species for Crepis
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Seed collecting:
December to January
Herbarium regions:
Kangaroo Island, South Eastern
NRM regions:
Kangaroo Island, South East
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Crepis]
Name derivation:
Crepis from the Greek 'krepis' meaning a foundation or boot; possibly referring to the shape of the fruit. It was first used by Theophrastus as a name for Picris echioides. Vesicaria from the Latin 'vesicarius' meaning bladder-like or having a bladder. Taraxicifolia means having foliage like the genus Taraxacum (dandelion).
Distribution:
Found on Kangaroo Island and in the lower South-east in South Australia, growing roadsides and other disturbed sites in forest and scrub. Also found in Victoria.
Status:
Naturalised. Common in South Australia. Common in Victoria.
Plant description:
Erect or ascending annual or biennial shrub to 100 cm high, often purplish near base. Young stems with short cobwebbed hairs and usually with stout, reddish spreading gland-tipped hairs. Rosette (well-developed) and lower stem leaves petiolate, oblong to oblanceo-late, usually deeply 1–2-pinnatifid, to 15 cm long and 5 cm wide, shortly bristly all over, upper stem leaves similar to lower or subentire, auriculate. Flower heads erect clusters at terminal with yellow daisy flowers. Flowering between October and November.
Fruit type:
White fluffy daisy head.
Embryo type:
Spatulate.
Seed collecting:
Collect whole heads that are brown and fluffy or collect just the seeds by plucking it off with your fingers. Mature seeds are easily removed.
Seed cleaning:
Place the heads in a tray for a week to dry. Then pluck the seeds from the head with your finders. Viable seeds will be fat and brown. 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:
Seeds are non-dormant, viable seed should germinate readily.