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Smooth Desertdandelion

Malacothrix glabrata (D. C. Eat. ex Gray) A. Gray

Comments

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Malacothrix glabrata grows in the Mojave, Great Basin, and Sonoran deserts in California and the Intermountain region in Arizona, Nevada, Oregon, and Utah.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 312, 316 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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Description

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Annuals, (5–)10–40+ cm. Stems (1–)3–5+, ascending to erect, usually branched proximally and distally, glabrous or sparsely arachno-puberulent near bases (sometimes glaucous). Cauline leaves: proximal usually pinnately lobed (lobes 3–6+ pairs, usually filiform, subequal to unequal, apices acute), ultimate margins entire, faces glabrous or ± hairy (then usually glabrescent); distal reduced (usually pinnately lobed). Calyculi of 12–20+, lanceolate to linear bractlets, hyaline margins 0.05–0.2 mm wide (abaxial faces often ± densely white-hairy). Involucres campanulate to hemispheric, 9–17 × 4–7 mm. Phyllaries 20–25+ in 2–3 series, lance-linear to linear, hyaline margins 0.05–0.3 mm wide, faces usually glabrous, abaxial sometimes ± white-hairy. Receptacles bristly. Florets 31–139; corollas usually pale yellow, sometimes white, 15–23+ mm; outer ligules exserted 9–15+ mm. Cypselae ± cylindro-fusiform (sometimes weakly 5-angled), 2–3.3 mm, ribs extending to apices, usually ± equal; persistent pappi of 0–12+, blunt to acute teeth plus 1–2(–5) bristles. Pollen 70–100% 3-porate. 2n = 14.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 312, 316 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Synonym

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Malacothrix californica de Candolle var. glabrata A. Gray ex D. C. Eaton in S. Watson, Botany (Fortieth Parallel), 201. 1871
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 312, 316 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Malacothrix glabrata

provided by wikipedia EN

Malacothrix glabrata, commonly known as the smooth desert dandelion or desert dandelion, is an annual plant in the family Asteraceae.[1] It is common to the southwestern deserts of North America and has showy pale-yellow to white flowers.[1] The name "glabrata" refers to the leaves being (nearly) hairless.[1] Like other members of its genus, it has a milky sap and flower heads composed of smaller strap-like flowers called "ligules".[1]

The species is native to the western United States, excluding much of the Pacific Northwest, and into northern Mexico. It is a dicot.

Malacothrix glabrata is typically 125 to 380 mm (5 to 15 in) tall with a 40 to 65 mm (1+122+12 in) flower head. Its fragrant, daisy-like flower heads are in shades of yellow or white, and flower heads may have an orange to red "button" in the center of the flower head, composed of several immature flowers.[2]

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References

  1. ^ a b c d Sia Morhardt, Emil Morhardt, California Desert Wildflowers, University of California Press, p. 64-65
  2. ^ Susan J. Wernert, Reader's Digest Association, Brenda Jackson. North American Wildlife: An Illustrated Guide to 2,000 Plants and Animals. Reader's Digest, 1998. p.467. ISBN 0-7621-0020-6

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Malacothrix glabrata: Brief Summary

provided by wikipedia EN

Malacothrix glabrata, commonly known as the smooth desert dandelion or desert dandelion, is an annual plant in the family Asteraceae. It is common to the southwestern deserts of North America and has showy pale-yellow to white flowers. The name "glabrata" refers to the leaves being (nearly) hairless. Like other members of its genus, it has a milky sap and flower heads composed of smaller strap-like flowers called "ligules".

The species is native to the western United States, excluding much of the Pacific Northwest, and into northern Mexico. It is a dicot.

Malacothrix glabrata is typically 125 to 380 mm (5 to 15 in) tall with a 40 to 65 mm (1+1⁄2–2+1⁄2 in) flower head. Its fragrant, daisy-like flower heads are in shades of yellow or white, and flower heads may have an orange to red "button" in the center of the flower head, composed of several immature flowers.

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Wikipedia authors and editors
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