Symphyotrichum fendleri (A. Gray) G. L. Nesom

Symphyotrichum fendleri has been reported from Mexico (Chihuahua) [by C. H. Schultz-Bipontinus (1856) fide G. L. Nesom (pers. comm.)], but its occurrence in Mexico remains to be confirmed.

Perennials, 6–30 cm, cespitose; with thick, woody, branched caudices. Stems 1–10+, decum­bent to ascending or erect (grayish brown, slender), sparsely strigoso-hispid, ± scabrous. Leaves (dark bright green) firm, much reduced distally, margins entire, apices acute, mucronate, faces usually glabrous, sometimes sparsely strigoso-hispid; basal withering by flowering (new vernal rosettes often present), sessile, blades (1–3-nerved) linear-oblanceolate, 20–40 × 5–30 mm, bases attenuate, margins scabro-ciliate; proximal cauline sometimes persistent, sessile, blades linear to linear-lanceolate, 10–40 × 5–20 mm, bases sometimes subclasping, margins entire, scabrous; distal sessile, blades linear to linear-lanceolate, 20–40 × 2–3 mm, bases cuneate, margins entire, coarsely cililate-spinulose, apices acute, white-spinulose, faces sometimes stipitate-glandular. Heads in ± narrowly racemiform to paniculiform arrays, branches sometimes initially patent, then spreading to ascending. Peduncles sparsely hispido-strigose, ± densely stipitate-glandular, bracts ± ascending, linear to lance-oblong, grading into phyllaries. Involucres campanulate, 4–7 mm. Phyllaries in 3–4 series, lanceolate, unequal, bases ± indurate, margins narrowly to widely scarious, hyaline except apically, sometimes ciliolate, often stipitate-glandular, green zones lanceolate to diamond-shaped, covering distal portion (outer), apices acuminate, spreading to reflexed, faces glabrous, moderately to densely short-stipitate-glandular. Ray florets 10–20; corollas light to dark lavender to purple, laminae 5–10 × 1–2 mm. Disc florets (7–)10–30; corollas yellow becoming reddish purple, 3.5–5 mm, throats narrowly funnelform, lobes narrowly triangular, 0.4–0.7 mm. Cypselae brown (nerves stramineous), obovoid, ± compressed, 1.5–2.5 mm, 7–10-nerved, faces moderately strigillose; pappi cinnamon to sordid, sometimes purplish-tinged, 4.5–5 mm. 2n = 10.

Aster fendleri A. Gray, Mem. Amer. Acad. Arts, n. s. 4: 66. 1849; Virgulus fendleri (A. Gray) Reveal & Keener

Symphyotrichum fendleri (formerly Aster fendleri) is a species of flowering plant in the family Asteraceae native to the mid- and south-central United States, including Great Plains states and extending into Texas and New Mexico. Commonly known as Fendler's aster, it is a perennial, herbaceous plant that may reach 6 to 30 centimeters (2 to 12 inches) in height. Its flowers have lavender to purple ray florets and yellow then reddish purple disk florets.

Symphyotrichum fendleri là một loài thực vật có hoa trong họ Cúc. Loài này được (A.Gray) G.L.Nesom miêu tả khoa học đầu tiên.