Plants of
South Australia
Picris squarrosa
Compositae
Hawkweed Picris
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Botanical art

Kath Alcock painting: 1.

Etymology

Greek 'pikros' sharp, pungent and Latin 'squarrosus' scabby bot, having overlapping leaves or bracts that are pointed or recurved

Distribution and status

On coastal dunes, alluvium along rivers, and disturbed ground elsewhere Rare
Herbarium regions: Murray, Southern Lofty
NRM regions: Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Erect biennial or perennial 20–80 cm high. Basal leaves elliptic to narrowly lanceolate, 6-22 cm long, 1-3 cm wide, hispidulous to hispid; cauline leaves lanceolate to linear decreasing in size up the stem. Inflorescence a loose terminal corymb, heads 5-9mm in diameter. Florest bisexual, with ligules 5–8 mm long, yellow. Flowering July - December. Fruits are achene 7-9 mm long, narrowed towards the apex but never filiform-beaked, ribbed, brown to yellowish; pappus bristles cream, mostly 7-9 mm long

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA1,900 (2.55 g)4027-Mar-2012DJD2349
Murray
1-Nov-201266%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.
Germination table:
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