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Western Wetland Flora

Field Office Guide to Plant Species

Lance-leaf Golden-weed
Haplopappus lanceolatus (Hook.) Torr. & Gray

JPG -- Species Photo JPG -- Distribution Map

Family: Composite (Compositae)
June-August
Field Marks: This species differs from others in Haplopappus by being herbaceous, by having yellow flowers usually arranged in corymbs, by having green-tipped bracts, and by having silky-covered achenes.
Habitat: Moist meadows, alkaline flats.
Habit: Perennial herb from a thickened rootstock and a taproot.
Stems: Ascending to upright, usually unbranched, up to 1 1/2 feet tall, smooth or hairy.
Leaves: Mostly basal, oblanceolate, up to 6 inches long, up to 3/4 inch wide, pointed at the tip, tapering to the base, with spiny teeth along the edge or without teeth, smooth to woolly hairy.
Flowers: Many crowded into heads up to 1 inch across, each head bearing 15-35 yellow ray flowers and a disk of yellow tubular flowers; bracts surrounding each head narrow, smooth or hairy, green-tipped.
Sepals: 0.
Petals: 5, yellow, some of them united to form rays, others united to form short tubes that comprise the disk.
Stamens: 5.
Pistils: Ovary inferior.
Fruits: Achenes narrowly ellipsoid, silky-hairy, bearing a tuft of brownish hairs at the tip.

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/plants/florawe/species/8/hapllanc.htm
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Page Last Modified: Saturday, 02-Feb-2013 06:27:59 EST
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