Hirpicium angustifolium (O.Hoffm.) Roessler

Tufted, rush-like, scapose perennial without leafy stems (scape with 1–4 reduced leaves); rootstock woody with many secondary roots; root-crown densely long-hairy.. Leaves mostly basal, erect, arcuate, filiform-linear, basal ones 10–25 cm long, 1.5–3 mm wide, widening at membranous clasping base and tapering to acute apex, entire, usually revolute, glabrous or with scattered hairs above, especially towards apex, sometimes with raised dots (? hair bases), usually white-felted beneath, midrib with occasional 3 mm long setae; cauline leaves only 1–3 cm long, otherwise like the basal ones.. Scape 2.5–17 cm long, 2–5-bracteate, bracts up to 2.8 cm long, 1.5 mm wide, supporting a solitary capitulum, arachnose and/or long setose with long soft weak bristles.. Capitula showy, 1.6–4 cm diameter; involucre 4-seriate, of many phyllaries (± 23), these awl-shaped, very narrowly ovate to ovate, 6–12 mm long, 1.5–2 mm wide, setose and/or arachnose outside, with long hairs on margins at the base, the inner ones with broader hyaline margins, outermost phyllaries free, the rest partially united; receptacle alveolate, each pit surrounded by an irregularly toothed scarious wall, sometimes swollen beneath capitulum.. Ray florets yellow, obovate or broadly elliptic, tubular for 1/5–1/6 of their length, with 2–4 apical teeth, much exceeding the involucral bracts, 10–20 mm long, 1.5–4 mm wide, veins 5–8; outer surface of floret minutely papillose.. Disc florets bisexual, yellow, funnel-shaped, divided into 5–6 lobes for 1/3 or more of the floret length, lobes ± erect, linear, floret 5–7 mm long, glabrous or minutely pubescent.. Achenes (immature) densely hairy with hairs up to 4 mm long concealing the achene; pappus uniseriate, scales partially united, narrowly obovate, fimbriate, almost ciliate, 0.5–2 mm long.. Fig. 59/13.