Fig 198. [Low Cudweed. Gnaphalium uliginosum] L.

Low Cudweed. Gnaphalium uliginosum L. Outer scales of the head thin, brown, more or less wooly; achenes .4-.6 mm. long, yellowish white to brown, slightly flattened, smooth, narrowly oblong .4-.6 mm. long. Achenes narrower and rather shorter than those of G. obtusifolium. Native to this country. Not of high rank as a weed.

Fig 199. [Broad-leaved Gum Plant. Grindelia squarrosa] (Pursh.) Dunal.

Broad-leaved Gum Plant. Grindelia squarrosa (Pursh.) Dunal. Flowers yellow; achenes creamy white or light brown, very variable in appearance, more or less flattened, often 4-angled, straight to much curved, narrowed at the base, apex truncate, often concave with a distinct marginal rim, some of them not very unlike those of Canada thistle, some of them smooth, others finely grooved or ridged lengthwise, others somewhat wrinkled, 2.5–3 mm. long. Occasionally introduced from the west with seeds of grasses or clover. Usually not persistent in Michigan.

Artichoke. Helianthus tuberosus L. Flowers yellow; achenes black, shiny more or less, slightly flattened, pubescent with very short hairs, with four obtuse angles, narrowly obovate, 6–7 mm. long, one side of the smaller end projecting beyond the other side. Native of this country; cultivated by Indians.

Fig 200. [Golden Mouse or Orange-Ear Hawkweed. Devil's Paint-Brush. Hieracium aurantiacum.]