This section is from the book "A Manual Of Weeds", by Ada E. Georgia. Also available from Amazon: A Manual Of Weeds.
Native. Perennial. Propagates by seeds.
Time of bloom: July to August.
Seed-time: August to September.
Range: Tennessee, Missouri, and Kansas, southward to Louisiana and Texas. Habitat: Meadows, fields, and waste places.
Fig. 293. - Broad-leaved Gum-plant (Grindelia squar-rosa). X 1/4.
A more slender plant than the preceding, erect, smooth, many-branched, one to two feet tall. Leaves narrow lance-shaped or the lowermost ones slashed into narrow, pointed lobes, the upper ones approaching to linear, but all acute at the apex, sharply toothed, sessile or clasping. Heads about an inch broad, with perfect disk florets and numerous narrow yellow rays, pistillate and fertile; bracts of the involucre very slender and awl-shaped, only the outer row spreading and the inner ones erect; achenes smooth, two-toothed, with a pappus of one or two awns.
Means of control the same as for the Broad-leaved Gum Plant.
 
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