Erigeron sceptrifer G.L. Nesom
Family: Asteraceae
Erigeron sceptrifer image
Sue Carnahan  
Annuals, 3-8 cm; taprooted. Stems (single or multiple) ascending from bases, moderately hirsuto-hirtellous (hairs spreading-ascending, mostly on ribs, bases thickened), minutely glandular. Leaves mostly cauline; blades linear to linear-oblanceolate, 10-30 × 0.5-1.5 mm (proximal rarely 4 mm wide), margins entire or proximalmost with 1-2 pairs of teeth, faces loosely ascending-strigose, minutely glandular. Heads 20-50+ in loosely corymbiform arrays (buds erect). Involucres 3-3.5 × 4-6 mm. Phyllaries in 3-4 series, sparsely hirsuto-strigose, minutely glandular. Ray florets (60-)85-130(-195); corollas white, drying purple, less often pink to bluish, 3.8-5 mm, laminae downward curving-reflexing. Disc corollas 1.8-2.3 mm (throats indurate and inflated). Cypselae 0.6-0.7 mm, 2-nerved (nerves orange), faces sparsely strigose; pappi: outer 0 or scales or setae, inner of 9-14 bristles. Flowering Jul-Oct. Grasslands with scattered juniper, oak, or oak-pine; of conservation concern; 1300-2100 m; Ariz.; Mexico (Chihuahua, Sonora). Erigeron sceptrifer is similar in habit to E. divergens; it has stem hairs only along the ribs, erect (versus nodding) buds, pappi of more bristles, without a conspicuous outer series, reflexing ray laminae, and orange cypselar nerves.

Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Sue Carnahan  
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image
Erigeron sceptrifer image