Melampodium longicorne

A. Gray

Pl. Nov. Thurb. 321. 1854.

Treatment appears in FNA Volume 21. Treatment on page 36. Mentioned on page 35.
Revision as of 15:36, 18 September 2019 by FNA>Volume Importer

Annuals, 10–60+ cm. Leaf blades lance-elliptic or oblanceolate to lance-linear, 25–50+ × 3–12+ mm, lengths 3–4(–6+) times widths, margins ± dentate or entire. Peduncles 4–30+ mm. Outer phyllaries 5, connate 0–1/6 their lengths, ovate to elliptic, 4–6+ mm. Ray florets 7–12; corollas yellow, laminae oblong-elliptic, 1.2–1.5+ × 0.7–1+ mm. Disc florets 8–10+. Fruits 3–3.5+ mm. 2n = 60.


Phenology: Flowering Aug–Oct.
Habitat: Sandy, gravelly, or loamy soils
Elevation: 1200–1500 m

Distribution

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Ariz., N.Mex., Mexico (Chihuahua, Sonora).

Discussion

Selected References

None.

Lower Taxa

None.