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California Desertdandelion

Malacothrix californica DC.

Comments

provided by eFloras
Malacothrix californica grows in the San Joaquin Valley, central western California, southwestern California, and the Mojave Desert.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 310, 311, 313 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

provided by eFloras
Annuals, 4–45 cm. Stems 1 (scapiform), erect or arcuate-ascending, mostly glabrous (shaggily piloso-hirsute proximally and at bases of heads). Cauline leaves: proximal oblanceolate to linear, pinnately lobed (lobes usually linear to filiform, sometimes broader), not fleshy, ultimate margins entire or dentate, faces usually shaggily piloso-hirsute (at least proximally), glabrescent; distal usually 0. Calyculi of 12–20, lanceolate to linear bractlets, hyaline margins 0.05–0.2 mm, abaxial faces shaggily piloso-hirsute to arachnose. Involucres (8–)10–15 × 5–6 mm. Phyllaries usually 20–26+ in 2-3+ series, (midstripes often reddish) lanceolate to lance-linear or subulate, unequal, hyaline margins 0.1–0.5 mm wide, abaxial faces (of outermost, at least) shaggily piloso-hirsute to arachnose (at least proximally). Receptacles sparsely bristly or glabrous. Florets 40–250; corollas usually yellow to pale yellow (often with abaxial reddish stripes), sometimes white, 16–20 mm; outer ligules exserted 11–13 mm. Cypselae ± prismatic, 2–3.4 mm, ribs extending to apices, 5 more prominent than others; persistent pappi of 12–15+, irregular, lance-deltate teeth plus (1–)2 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: 310, 311, 313 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 californica

provided by wikipedia EN

Malacothrix californica is a species of flowering plant in the family Asteraceae known by the common name California desertdandelion. It is native to California, the western margin of Arizona and Baja California, where it may be found especially in the South Coast, Transverse and Peninsular Ranges and the western Mojave Desert.[1][2]

Involucres (8–)10–15 × 5–6 mm. Phyllaries usually 20–26+ in 2-3+ series, (midstripes often reddish) lanceolate to lance-linear or subulate, unequal, hyaline margins 0.1–0.5 mm wide, abaxial faces (of outermost, at least) shaggily piloso-hirsute to arachnose (at least proximally).

Description

It is an annual herb producing a flowering stem up to about 45 centimeters high. The pinnately lobed linear to lance-shaped leaves are mostly located around the base of the plant. The lobes are generally threadlike to linear. The inflorescence is a flower head borne singly lined with hairy-based phyllaries, usually 20 to 26 or more in 2 to 3 or more series. Each bract often has a red midstripe. The 16–20 millimetres (0.6–0.8 in) head bears rings of ray florets, usually yellow to pale yellow, but sometimes white.[2]

References

  1. ^ Sullivan, Steven. K. (2018). "Malacothrix californica". Wildflower Search. Retrieved 2018-07-06.
  2. ^ a b "Malacothrix californica". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2018. Retrieved 2018-07-06.

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Wikipedia authors and editors
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Malacothrix californica: Brief Summary

provided by wikipedia EN

Malacothrix californica is a species of flowering plant in the family Asteraceae known by the common name California desertdandelion. It is native to California, the western margin of Arizona and Baja California, where it may be found especially in the South Coast, Transverse and Peninsular Ranges and the western Mojave Desert.

Involucres (8–)10–15 × 5–6 mm. Phyllaries usually 20–26+ in 2-3+ series, (midstripes often reddish) lanceolate to lance-linear or subulate, unequal, hyaline margins 0.1–0.5 mm wide, abaxial faces (of outermost, at least) shaggily piloso-hirsute to arachnose (at least proximally).

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN