Isocoma drummondii

(Torrey & A. Gray) Greene
Erythea 2: 111. 1894.
Common names: Drummond’s jimmyweed
Basionym: Linosyris drummondii Torrey & A. Gray Fl. N. Amer. 2: 233. 1842
Synonyms: Haplopappus drummondii (Torrey & A. Gray) S. F. Blake Isocoma megalantha Shinners
Treatment appears in FNA Volume 20. Treatment on page 444. Mentioned on page 440.

Herbage glabrous, not resinous. Leaf blades narrowly oblong to oblanceolate-oblong, 13–50 mm, margins usually entire, sometimes distally toothed (shallow teeth in 1–3 pairs). Involucres (5.5–)6.5–8 × 4.5–5.5(–7) mm. Phyllary apices usually green, not aristate, usually strongly gland-dotted, without resin pockets. Florets (18–)22–34; corollas 5.8–7.5 mm. Cypsela ribs not forming hornlike extensions.


Phenology: Flowering (Mar–)May–Jul.
Habitat: Coastal habitats, often on beach dunes, sand or less commonly clay, brushy prairies, scrub woods, often with mesquite
Elevation: 0–20 m

Distribution

V20-1020-distribution-map.gif

Tex., Mexico (Tamaulipas).

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Isocoma drummondii"
Guy L. Nesom +
(Torrey & A. Gray) Greene +
Linosyris drummondii +
Drummond’s jimmyweed +
Tex. +  and Mexico (Tamaulipas). +
0–20 m +
Coastal habitats, often on beach dunes, sand or less commonly clay, brushy prairies, scrub woods, often with mesquite +
Flowering (Mar–)May–Jul. +
Haplopappus drummondii +  and Isocoma megalantha +
Isocoma drummondii +
species +