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Tufted Wirelettuce

Stephanomeria paniculata Nutt.

Description

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Annuals, 0–100 cm. Stems single, branched (branches nearly at right angles, stiff), glabrous. Leaves withered at flowering; basal blades oblanceolate, 6–10 cm, margins entire or toothed (teeth minute, faces glabrous); cauline much reduced, bractlike. Heads borne singly along branches or in paniculiform arrays . Peduncles 2–10 mm. Calyculi of appressed bractlets. Involucres 6–9 mm. Florets 5. Cypselae light to dark tan, 3.8–4.2 mm, faces slightly bumpy to tuberculate, (grooved); pappi of 15–18 tan bristles (connate in groups of 2–4, bases persistent), plumose to tops of bases. 2n = 16.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 351, 352, 356 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Stephanomeria paniculata

provided by wikipedia EN

Stephanomeria paniculata is a species of flowering plant in the family Asteraceae known by the common names tufted wirelettuce[1] and stiff-branched wirelettuce. It is native to the northwestern United States, where it grows in many types of habitat, including disturbed areas. It is an annual or biennial herb producing a slender, erect stem with stiff, widely spreading branches toward the top. It is hairless. The leaves are mostly located in a basal rosette, the largest reaching 10 centimeters long. Smaller, linear leaves occur along the upper stem. Flower heads occur singly or in small clusters along the stiff branches. Each head contains 4 to 6 ray florets, each with an elongated tube and a pinkish or lavender ligule up to 1.4 centimeters long. The fruit is an achene tipped with a spreading cluster of long, white pappus bristles.

References

  1. ^ USDA, NRCS (n.d.). "Stephanomeria paniculata". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2 December 2015.

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Stephanomeria paniculata: Brief Summary

provided by wikipedia EN

Stephanomeria paniculata is a species of flowering plant in the family Asteraceae known by the common names tufted wirelettuce and stiff-branched wirelettuce. It is native to the northwestern United States, where it grows in many types of habitat, including disturbed areas. It is an annual or biennial herb producing a slender, erect stem with stiff, widely spreading branches toward the top. It is hairless. The leaves are mostly located in a basal rosette, the largest reaching 10 centimeters long. Smaller, linear leaves occur along the upper stem. Flower heads occur singly or in small clusters along the stiff branches. Each head contains 4 to 6 ray florets, each with an elongated tube and a pinkish or lavender ligule up to 1.4 centimeters long. The fruit is an achene tipped with a spreading cluster of long, white pappus bristles.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
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visit source
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wikipedia EN