Erigeron oxyphyllus Greene

Erigeron oxyphyllus is a member of sect. Pycnophyllum and is set apart from the rest of the section by its cauline leaves, sharply reduced in length distally, and by its more southeastern geographic range (versus the California-centered distribution of the rest of the section).

Perennials, 5–25 cm; taprooted, caudexlike branches relatively thick, woody. Stems ascending (without axillary tufts of leaves), glabrous, eglandular. Leaves cauline (all commonly withering early in season); proximal blades oblanceolate to narrowly oblanceolate, 20–50(–100) × 0.5–1(–15) mm, abruptly reduced distally, becoming linear to filiform, mid and distal shorter than internodes, margins entire, usually eciliate, sometimes sparsely ciliate, faces sparsely and minutely strigose or glabrous, eglandular. Heads 1(–3). Involucres 4–5(–6) × 7–12 mm. Phyllaries in (3–)4–5 series (inner with (1–)3 orange veins, margins of inner narrow, scarious), usually glabrous, outer sometimes sparsely strigulose, minutely glandular. Ray florets 12–27(–45); corollas white to lavender or blue, 6–9 mm, laminae slightly coiling at tips. Disc corollas 3–4 mm (throats slightly indurate, not inflated). Cypselae ca. 2 mm, 2–4(–5)-nerved, faces sparsely strigose; pappi: outer of setae, inner of 17–25 bristles. 2n = 18.

Erigeron oxyphyllus is a species of flowering plant in the family Asteraceae known by the common name wand fleabane. It is native to northwestern Mexico (state of Sonora) and the southwestern United States (mostly Arizona but with a few populations in the Whipple Mountains just west of the Colorado River in California).

Erigeron oxyphyllus is a branching perennial herb up to 25 centimeters (10 inches) tall, producing a woody taproot. The leaves and the stem are covered with hairs. The plant generally produces 1-3 flower heads per stem, each head with 12–45 white, blue, or lavender ray florets surrounding numerous yellow disc florets.

Erigeron oxyphyllus là một loài thực vật có hoa trong họ Cúc. Loài này được Greene mô tả khoa học đầu tiên năm 1895.