Hieracium aurantiacum L.
orange hawkweed
Stolons slender, with numerous long simple eglandular hairs. Rosette lvs green, narrowly oblanceolate, sessile, entire or obscurely dentate, 5-15 × 1.5-2.5 cm, obtuse to subacute, cuneate at base, with numerous fine simple hairs 1-4 mm long on both surfaces; stellate hairs 0 or sparse beneath. Stems lvs 0-1, small. Flowering stems erect, (6)-15-40 cm tall, with numerous spreading simple eglandular hairs 3-5 mm long throughout, numerous short glandular hairs above and stellate hairs sparse below and dense above. Peduncles 1-2 cm long at flowering. Capitula (3)-5-10-(15) per stem; involucre 5-8-(10) mm long; bracts with numerous simple eglandular hairs, few to numerous glandular hairs, and numerous stellate hairs. Florets orange, purple when dry, not striped on outer face, c. 2× length of involucre. Achenes dark, 1.5-2 × c. 0.5 mm. Pappus sordid, up to 6 mm long.
N.: Manawatu (Feilding); S.: Nelson, Canterbury, Westland (Otira), Otago, Southland; St.: Halfmoon Bay.
Europe 1911
Waste land, grassland, scrub, tussock grassland, roadsides, lawns, gardens, pastures.
N.Z. plants belong to subsp. carpathicola Naeg. et Peter distinguished by its long stolons and small lvs and involucres. H. aurantiacum differs from H. × stoloniflorum, the only other hawkeed in N.Z. with orange florets, by its clustered small capitula on peduncles < 2 cm long at flowering and by having few or no stellate hairs on its lvs. H. aurantiacum is sometimes referred to as Pilosella aurantiaca.
