166. Eastwoodia Brandegee, Zoë. 4: 397. 1894.
[For Alice Eastwood, 1859–1953, western American botanist]
Guy L. Nesom
Shrubs, rounded, 30–100 cm. Stems erect, branched, glabrous, often resinous. Leaves cauline ; alternate; sessile; blades 1-nerved, linear to linear-oblanceolate, margins entire (apices acute), faces glabrous or sparsely hirtellous, gland-dotted (in pits), slightly resinous. Heads discoid, borne singly or in loosely corymbiform arrays. Involucres hemispheric to campanulate, impressed at base, 4–6 × 7–22 mm. Phyllaries 30–45 in 3–5 series, stiffly erect, green on distal 1 / 2 , 1-nerved (midnerves indurate and raised; slightly convex, strongly keeled by midnerves), oblanceolate, unequal, thick, proximally indurate, margins narrowly scarious, (apices acute to apiculate) faces glabrous , resinous. Receptacles flat, pitted, paleate (paleae falling quickly, oblanceolate, chartaceous). Ray florets 0. Disc florets 30–40, bisexual, fertile; corollas yellow, tubes longer than cylindric to funnel-shaped throats, lobes 5, spreading to reflexing, narrowly lanceolate; style branch appendages triangular-lanceolate. Cypselae (brownish ) narrowly obconic, 3–4-angled, strigoso-sericeous (especially on angles); pappi persistent, of 5–8 linear-lanceolate, thick, flat, minutely erose scales in 1 series. x = 9.
Species 1: sw United States.
Eastwoodia is recognized by its white-barked, shrubby habit, linear, gland-dotted, resinous leaves, discoid heads on leafy stems, paleate receptacles, and pappi of long scales.