Eastern Mojave Vegetation Inflorescence of Coll. No. 1540, Dyssodia papposa  
 

 

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  Asteraceae Dyssodia papposa
Scanned 20 January 2017.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.796N, 105.2055W. WGS 1984 Elev. 1840 m. On edge of private horse pasture.

Coll. No. 1540, 18 August 2016, characters observed: Annual, to 15 cm., tap-rooted, most surfaces with scattered 0.4 mm. elliptical brown oil glands; Leaves, cauline, 28 mm. × 12 mm. wide, reduced above, pinnafitid, ±sessile; Heads, borne singly on leafy stems; Phyllaries, 2+ graduated series, 3 mm. × 1 mm. wide, lanceolate, to 6 mm. × 2.7 mm. wide, elliptic, 5-9 brown oil glands; Receptacle, epaleate; Flowers, 1 kind; Disk flowers, 2.8 mm., yellow; Pappus, scales, dissected to appear to be bristles, 3 mm.; Cypsela, 4 mm., black. Native roadside weed.

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Other photos about Species - Asteraceae or Dyssodia papposa.

 


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Date and time this page was prepared: 11/24/2017 11:22:56 AM