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Santa Cruz Island Malacothrix

Malacothrix indecora Greene

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provided by eFloras
Malacothrix indecora is found on San Miguel, Santa Cruz, and Santa Rosa islands.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 311, 313, 317 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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eFloras.org
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Description

provided by eFloras
Annuals, 2–12(–45) cm. Stems usually 1, erect or ± prostrate, usually ± branched proximally (often forming mats, usually leafy throughout), glabrous. Cauline leaves: proximal obovate to spatulate, usually pinnately lobed (lobes 1–3+ pairs, nearly equal, apices obtuse), usually fleshy, ultimate margins entire, faces glabrous; distal not reduced (similar to others). Calyculi of 8–13+, lance-deltate to lanceolate bractlets (sometimes intergrading with phyllaries), hyaline margins 0.05–0.2 mm wide. Involucres ± campanulate, 6–8 × 2–6+ mm. Phyllaries 13–22+ in 2–3 series, (often red-tinged) oblong to lanceolate, hyaline margins 0.05–0.2 mm wide, faces glabrous. Receptacles glabrous. Florets 18–76; corollas medium yellow, 4–8 mm; outer ligules exserted 1–4 mm. Cypselae ± prismatic, 1.2–1.5 mm, ribs extending to apices, 5 more prominent than others; persistent pappi 0. 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: 311, 313, 317 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

Synonym

provided by eFloras
Malacothrix foliosa A. Gray var. indecora (Greene) E. W. Williams
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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: 311, 313, 317 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 indecora

provided by wikipedia EN

Malacothrix indecora is a rare species of flowering plant in the family Asteraceae known by the common name Santa Cruz Island desertdandelion. It is endemic to the Channel Islands of California, where it is known from only a few populations on three of the eight islands. As of 2000, there were three occurrences on San Miguel Island, two on Santa Rosa Island, and one on Santa Cruz Island.[1] It grows on the bluffs and rocky coastal grasslands of the islands. Like many Channel Islands endemics, this plant is naturally limited in distribution and has been threatened by the presence of destructive introduced mammals, in this case, feral pigs.[1] The plant became a federally listed endangered species in 1997. This is a mat-forming annual herb which spreads low to the ground no more than about 10 centimeters high. The fleshy leaves have dull lobes. The inflorescence is an array of flower heads lined with oval-shaped phyllaries. The ray florets are under a centimeter long and yellow in color.

References

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Malacothrix indecora: Brief Summary

provided by wikipedia EN

Malacothrix indecora is a rare species of flowering plant in the family Asteraceae known by the common name Santa Cruz Island desertdandelion. It is endemic to the Channel Islands of California, where it is known from only a few populations on three of the eight islands. As of 2000, there were three occurrences on San Miguel Island, two on Santa Rosa Island, and one on Santa Cruz Island. It grows on the bluffs and rocky coastal grasslands of the islands. Like many Channel Islands endemics, this plant is naturally limited in distribution and has been threatened by the presence of destructive introduced mammals, in this case, feral pigs. The plant became a federally listed endangered species in 1997. This is a mat-forming annual herb which spreads low to the ground no more than about 10 centimeters high. The fleshy leaves have dull lobes. The inflorescence is an array of flower heads lined with oval-shaped phyllaries. The ray florets are under a centimeter long and yellow in color.

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cc-by-sa-3.0
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Wikipedia authors and editors
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wikipedia EN