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Chalk Hill Hymenopappus

Hymenopappus tenuifolius Pursh

Description

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Biennials, 40–150 cm. Leaves 2-pinnate, 8–15 cm, lobes (3–)5–15+ × 0.5–1.5+ mm; cauline 8–30. Heads 20–200 per stem. Pedun-cles 1–5 cm. Phyllaries yellowish, 5–8 × 2–4 mm. Ray florets 0. Disc florets 25–50; corollas whitish, 2.5–3 mm, tubes 1.5–2.2 mm, throats campanulate, 0.8–1.5 mm, lengths 1.5–2 times lobes. Cypselae 3.5–4.5 mm, ± villous; pappi of 16–18 scales 1–1.5(–2) mm. 2n = 34.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 310, 316 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Hymenopappus tenuifolius

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Hymenopappus tenuifolius, the Chalk Hill hymenopappus,[1] is a North American species of flowering plant in the daisy family. It grows in the central and southeastern United States, primarily on the Great Plains from Texas and New Mexico north as far as South Dakota.[2]

Hymenopappus tenuifolius is a biennial herb up to 150 cm (5 feet) tall. It produces 20-200 flower heads per stem, each head with 25–50 white disc flowers but no ray flowers.[3][4]

References

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Hymenopappus tenuifolius: Brief Summary

provided by wikipedia EN

Hymenopappus tenuifolius, the Chalk Hill hymenopappus, is a North American species of flowering plant in the daisy family. It grows in the central and southeastern United States, primarily on the Great Plains from Texas and New Mexico north as far as South Dakota.

Hymenopappus tenuifolius is a biennial herb up to 150 cm (5 feet) tall. It produces 20-200 flower heads per stem, each head with 25–50 white disc flowers but no ray flowers.

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