Annuals, 5–35+ cm. Leaf blades oblanceolate to oblong-linear, 15–55+ × 3–12+ mm, lengths 4–6+ times widths, sometimes pinnately 2–4-lobed, ultimate margins ± dentate or entire. Peduncles 0–3(–11+) mm. Outer phyllaries 5, connate 0–1/6 their lengths, lance-elliptic, 3–6 mm. Ray florets 5–8; corollas yellow, laminae oblong-ovate, 0.6–1.1+ × 0.5–10.8+ mm. Disc florets 5–8+. Fruits 2.2–3 mm. 2n = 40.

Phenology: Flowering Aug–Sep.
Habitat: Openings in pine forests
Elevation: 1200–1700 m

Distribution

• Generated Map
• Legacy Map

Ariz., Colo., Tex., Mexico.

Discussion

Specimens of Melampodium strigosum have been misidentified as M. hispidum Kunth, a synonym of M. sericeum (see T. F. Stuessy 1972). The station for M. strigosum in Colorado is ca. 1400 km distant from stations in Arizona and Texas.

Selected References

None.

Lower Taxa

None.