Hymenoxys grandiflora (Torr. & A.Gray) K.L.Parker (redirected from: Tetraneuris grandiflora)
Family: Asteraceae
[Actinea grandiflora (Torr. & A.Gray) Kuntze,  more...]
Hymenoxys grandiflora image
RT Hawke  

Perennials, 8-30 cm (polycarpic, often with sparingly branched, woody caudices). Stems 1-10, green throughout to purple-red-tinted proximally or distally to purple-red-tinted throughout, usually unbranched distally, ± hairy. Leaves: blades simple or lobed (lobes 3-15), ± hairy, gland-dotted (basal leaf bases, sparsely, if at all, long-villous-woolly); mid leaves simple or lobed (lobes 3-7, terminal lobes 1-2.5 mm wide). Heads 1-10 per plant, usually borne singly. Peduncles 1-10 cm, ± hairy, tomentose distally near involucres. Involucres hemispheric to subglobose, 15-25 × 18-30 mm. Phyllaries in 2-3 series, subequal; outer 16-24, basally connate 1/5-1/4 their lengths, lanceolate, 9-15 mm, apices acute; inner 16-24+, lanceolate to oblanceolate, 8-12 mm, apices acuminate to acute. Ray florets 15-34(-44); corollas yellow, 16-30 × 4-8 mm. Disc florets 150-400+; corollas 5-6 mm. Cypselae obpyramidal to narrowly obpyramidal, 3.3-3.7 mm; pappi of 5-7 lanceolate, aristate scales 4.5-5.3 mm. 2n = 30.

Flowering Jun-Aug. Meadows, often above timberline; 2600-4300 m; Colo., Idaho, Mont., Utah, Wyo.

Hymenoxys grandiflora image
RT Hawke  
Hymenoxys grandiflora image
RT Hawke  
Hymenoxys grandiflora image
RT Hawke  
Hymenoxys grandiflora image
Barry Breckling  
Hymenoxys grandiflora image
Barry Breckling  
Hymenoxys grandiflora image
Barry Breckling  
Hymenoxys grandiflora image
Barry Breckling