Lindley in T.L. Mitchell, J. Trop. Austral. 306 (1848).
Synonymy: H. heterophylla Brongn. var. aspera (Linalley)Schindler, Pflanzenr. 23:46 (1905); H. heterophylla Brongn. var. glaucifolia Schindler, Pflanzenr. 23:46 (1905).
Common name: Rough raspwort.
Perennial herb 12-25 cm tall, perennating by very deep underground stolons; stems annual, smooth with spreading 3- or 4-celled hyaline hairs hooked at the tip; leaves subglaucous, alternate, sessile, lanceolate to narrow-ovate, 20-50 mm long, 5-15 mm wide; margin thickened, entire or with up to 16 coarse teeth, scabrous.
Inflorescence composed of 3-5- (rarely 1-) flowered dichasia; occasional lateral inflorescences in the axils of the upper leaves; bracts green, 10-17 mm long, entire or serrate; bracteoles brown to white, linear, 1.2-1.4 mm long, entire; flowers 4-merous, on pedicels 0.1-0.2 mm long; sepals deltoid, 1.5-1.7 mm long; petals green to red, 2.1-3 mm long; stamens 8; anthers oblong, 1.3-2.3 mm long; styles 4, stigmas red-purple; ovary globular, 1.4-1.5 mm long, smooth, scabrous, 4-locular.
Fruits 1-3 per axil, on pedicels to c. 0.6 mm long, globular to pear-shaped with the broadest end proximally or ovoid, 2-4.5 mm long, 1.8-3 mm wide, weakly 4-8-ribbed in the upper half, warty in the lower half, glabrous or scabrous, 4-locular.
Orchard (in press) Fl. Aust. 18.
S.Aust.: NW, LE, GT, FR, EA, EP, NL, MU, YP, SL, KI, SE. N.T.; Qld; N.S.W.; Vic.; Tas. Adventive in New Zealand.
Flowering time: Aug. — March (occasionally until May).
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
McBarron (1972) found some N.S.W. plants of this species to be cyanogenic. The deep stoloniferous rootstock can make the species a locally troublesome weed of cultivation.
Hybrids are known between H. aspera and H. heterophylla, H. aspera and H. uncatipila, and H. aspera and H. glauca.
Not yet available