Perennials or subshrubs [shrubs], 30–80 [–250+] cm. Leaves mostly cauline [basal]; mostly alternate (proximal sometimes opposite); petiolate; blades deltate to cordate [ovate to lanceolate], sometimes ± palmately 3-lobed [dissected], ultimate margins [entire] toothed, faces ± strigillose [often whitened with close-set hairs] and/or glanddotted. Heads radiate [discoid], in loose, corymbiform [paniculiform] arrays [borne singly]. Calyculi 0. Involucres hemispheric. Phyllaries persistent, 10–25 in 2–3+ series (distinct, lanceolate to linear, subequal, ± herbaceous). Receptacles convex to conic, paleate (paleae often greenish, ± conduplicate, herbaceous to scarious, entire or 3-toothed). Ray-florets [0, or 4–] 8–10, pistillate, fertile; corollas yellow (laminae often with 9–12+ brownish nerves). Disc-florets 30–100+, bisexual, fertile; corollas yellow, tubes shorter than or about equaling cylindric to urceolate throats (bases of tubes often dilated over tops of ovaries and/or cypselae, tubes and throats often glandular-puberulent), lobes 5, deltate; anther thecae dark; stigmatic papillae continuous. Cypselae (blackish) ± compressed [clavate to prismatic, ± 3–4-angled], often arcuate, glabrous [hairy]; pappi 0 (ray and disc) [of 3–8, subulate to setiform scales or bristles (ray)].

Distribution

sw United States, Mexico

Discussion

Genera 3, species 13 (1 species in the flora).

Other members of Zaluzaniinae in the sense of H. Robinson (1981) have been placed in Neurolaeninae and in Helianthinae.

Selected References

None.

Lower Taxa

Zaluzania