. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian. Genus 102. THISTLE FAMILY. 541 6. Senecio spartioides T. & G. Broom-like Senecio. Fig. 4615. Senecio spartioides T. & G. Fl. N. A. 2 : 438. 1843. Woody at the base, usually branched, sometimesshrubby, glabrous or nearly so, leafy, i°-6° sessile, or the lowest petioled, Is long,linear, entire, or more or less serrate, not lobed;heads corymbose at the ends of the br
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian. Genus 102. THISTLE FAMILY. 541 6. Senecio spartioides T. & G. Broom-like Senecio. Fig. 4615. Senecio spartioides T. & G. Fl. N. A. 2 : 438. 1843. Woody at the base, usually branched, sometimesshrubby, glabrous or nearly so, leafy, i°-6° sessile, or the lowest petioled, Is long,linear, entire, or more or less serrate, not lobed;heads corymbose at the ends of the branches, ^-ibroad, slender-peduncled; involucre cylindric orbecoming campanulate, 4-5 high, its bractslinear, acute or acuminate, usually with somesubulate exterior ones; rays 8-15; achenes ca-nescent; pappus bright white. Plains, in dry soil, Nebraska to Texas, Wyomingand Arizona. June-Sept. This and the followingspecies were included in the description of the farwestern 5. Douglasii DC. in our first
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
