76074 Parthenium confertum Biennial. Plants up to 2 ft. high. Limestone gravel. 10.4 miles E of Parnas, Coah. Sept 7, 1976 76075 Parthenium argyrotatum Scattered shrubs with uncommonly stout trunk and broad leaves. & Practically no seed. One of the best appearing shrubs we've seen from the point of view of biomass. Heavier sail than usual. Small hill and adjacent arroyo. 5 miles E. & Parnas, Coah. Sept 7, 1976 76076 Parthenium sicanum Shrubs up to 5 ft. tall. Very bushy. Abundant, and in good seed. Some locality A 76075.