Citation: D. Cooke, sp. nov.

Synonymy: Not Applicable

Common name: None

Description:
Annual herb forming dense round clumps to 2 cm high; stems spreading to erect, cymose-branched, pale-brownish, pilose; basal leaves few, soon withering, oblanceolate, 3-5 mm long, mucronulate, glabrous; cauline leaves opposite to alternate, oblanceolate to elliptic, acute, mucronulate, 3-5.5 mm long, 0.4-1.4 mm wide, flat with recurved margins, distinctly 3-veined, subglabrous, bright-green.

Capitula solitary on each ultimate branch, sessile among leaves; involucre hemispherical, c. 2 mm long, 2-seriate, glabrous; bracts ovate to obovate, subequal, acute to obtuse, scarious-hyaline, with a green midrib; receptacle convex to conical, c. 1.2 mm diam.; florets 25-40, 4-merous; corolla c. 1 mm long, pale-yellow.

Achenes ovoid-conic, c. 0.5 mm long, glabrous, almost smooth, pale-brown; pappus bristles 6-10, 1-1.4 mm long, connate at the base, evenly plumose, deciduous.

Distribution:  In mulga woodland. Conservation status: native Flowering time: recorded in Sept.

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: Closely related to H. dernissum but readily distinguished by the hairy stems and broader elliptical leaves.

Taxonomic notes: Holotype: c. 2.5 km south-east of Ingomar Homestead, S.Aust., K. Stove 655, 15.ix. 1978 (AD 97844024). Herba annua caespes rotundatos ad 2 cm altos formans; caules patentes ad erecti sympodiales pilosi; folia basalia pauca marcescentia; folia caulina opposita alternave oblanceolata ellipticave acuta mucronulata 3-5.5 mm longa 0.4-1.4 mm lata plana marginthus recurvis, subglabra manifeste trinervata; capitula solitaria ramum ultimum unumquemque terminantia inter folia sessilia; involucrum hemisphaericum c. 2 mm longum glabrum; bracteae biseriatae ovatae obovataeve subaequales acutae obtusaeve scarioso-hyalinae costa viridi; receptaculum convexum conicumve, c. 1.2 mm aliametro; rioscult 25-40 4-meri bisexuales; corolla c. 1 mm longa luteola; achaenia ovoideo-conica c. 0.5 mm longa c. 0.25 mm lata glabra sublaeve pallide brunnea; pappus 1-1.4 mm longus deciduus, setis 6-10 aequaliter plumosis bast connatis. Notes: Named after Miss K. Stove, Australian botanist, who collected the holotype.

Author: Not yet available