SLENDER GOLDENWEED
File Size: 72 KB
 
Croptilon hookerianum   (T. & G. ) House  var. validum  (Rydb. ) E.B. Sm.
[=Haplopappus validus  (Rydb. ) Cory]
Russell County, Kansas
Annual
Height: 16-28 inches
Family: Asteraceae - Sunflower Family
Flowering Period:   July, August, September
Stems: Erect, slender, single, simple below, branched above middle, glandular-hairy.
Leaves: Alternate, simple, sessile, oblanceolate to spatulate, 1.5 to 2.75 inches long, 1/5 to 2/5 inch wide, sparsely hairy near bases; margins entire to irregularly toothed.
Inflorescences: Open panicles of heads on long, bristly-hairy stalks; heads less than 1 inch wide; bracts narrowly lanceolate, overlapping in several series, short glandular-hairy.
Flowers: Ray florets mostly 13-21, less than 1/2 inch long, yellow; disk florets numerous, yellow, corolla tubes separated into 5 lateral sections by dark reddish brown lines.
Fruits: Achenes, triangular, less than 1/10 inch long, slightly flattened, silky hairy, tipped with numerous white bristles, enclosing small seed.
Habitat: Open prairies on dry, sandy soils.
Distribution: Central 1/3 of Kansas.

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