Erigeron foliosus Nutt. (redirected from: Erigeron filiosus)
Family: Asteraceae
[Erigeron filiosus Nutt.]
Erigeron foliosus image
Keir Morse  

Perennials, 20-100 cm; taprooted, woody, with caudexlike branches 2-15 cm, or leafy stems arising directly from roots; single plants usually bowl-shaped, with up to a 65 cm lateral spread). Stems erect or ascending (often purple, distal branches stiff, spreading-ascending, without axillary leaf tufts), glabrous or sparsely strigose (hairs straight, ascending-appressed), sometimes minutely glandular distally. Leaves cauline; blades 1-nerved (often sharply folding in narrower forms), filiform or linear to oblanceolate, 10-65 × 1-5(-10) mm, relatively even-sized (mid and distal longer than inter-nodes), margins entire, ciliate (cilia ascending-appressed, thick-based), faces glabrous or sparsely strigose, eglandular. Heads 1 or 2-5 in loosely corymbiform arrays. Involucres 3.2-6.5 × 7-12(-14) mm. Phyllaries in 3-5 series (outer: margins stramineous, with distal, greenish, rhomboid patches; inner: margins narrow, scarious), glabrous or moderately to densely strigoso-hirsute, sparsely and obscurely to densely and prominently minutely glandular. Ray florets 15-60; corollas white to blue, 5-15 mm, laminae not coiling or reflexing. Disc corollas 3.5-5.5 mm (throats slightly indurate, not inflated). Cypselae (1.8-)2.2-3 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 19-34 bristles.

Erigeron foliosus and its close relatives, including varieties, were mapped in detail by G. L. Nesom (1992b).

Erigeron foliosus image
Keir Morse  
Erigeron foliosus image
Keir Morse  
Erigeron foliosus image
Barry Breckling  
Erigeron foliosus image
Barry Breckling  
Erigeron foliosus image
Barry Breckling  
Erigeron foliosus image
Barry Breckling  
Erigeron foliosus image
Keir Morse  
Erigeron foliosus image
Keir Morse  
Erigeron foliosus image
Keir Morse  
Erigeron foliosus image
KeirMorse