Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Haplopappus lanceolatus (Hook.) Torr. & Gray
- Family: Composite (Compositae)
- 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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