Steetz in Lehm., Pl. Preiss. 1:488 (1845).
Synonymy: P. hieracioides L. var. squarrosa (Steetz)Benth., Fl. Aust. 3:678 (1867).
Common name: None
Biennial or perennial 30-80 cm high, hispid with rigid spine-like hairs, sometimes tubercle-based, with 2-hooked apices; stems erect, sparsely branched, hispid; basal leaves elliptic to narrowly lanceolate, narrowed at the base, acute, 6-22 cm long, 1-3 cm wide, shallowly sinuate-toothed to almost entire, hispidulous to hispid; cauline leaves lanceolate to linear, amplexicaul with rounded auricles, decreasing in size up the stem.
Capitula in a loose corymb; peduncles 3-9 cm long, with several minute bracteoles near the apex; involucre 11-15 mm long, 3-5-seriate; outer bracts loose, spreading to recurved, in 2-4 series, lanceolate, 2-5 mm long, glabrous, grading into the bracteoles; inner bracts 12-18, linear-lanceolate, acurainate, 10-14 mm long, slightly pubescent.
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.
On coastal dunes, alluvium along rivers, and disturbed ground elsewhere.
S.Aust.: EP, MU, SL, SE. W.Aust.; Vic.
Flowering time: July — Dec.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
The material here referred to P. squatrosa may include one or more undescribed species; in particular, populations along the Murray appear to represent a distinct entity with smaller leaves and paler involucres. The names P. asperrima Lindley, Edwards' Bot. Reg. Misc. 24:58 (1838) and P. barbarorum Lindley, Edwards' Bot. Reg. Misc. 24:58 (1838) are based on specimens of Picris of this aggregate from Tas. and W.Aust. respectively, and either may be applicable to some of the S. Aust. material.
Not yet available