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Comments

provided by eFloras
Layia jonesii occurs on the immediate coast from Cayucos to Morro Bay and in the Outer South Coast Ranges near San Luis Obispo. Layia jonesii is most closely related to L. leucopappa and L. munzii (B. G. Baldwin, unpubl.); the three species are interfertile (they do not co-occur; J. Clausen 1951).
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 263, 266 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
Plants 7–55 cm (self-incom-patible); glandular, not strongly scented. Stems usually purple-streaked. Leaf blades lanceolate or oblanceolate to linear, 10–70(–90) mm, margins (basal leaves) lobed to pinnatifid. Involucres ± broadly urceolate, 4–8 × 4–8(–12) mm. Phyllaries 13–27, apices usually shorter, sometimes longer than folded bases. Paleae in 1 series between ray and disc florets. Ray florets 13–27 (in 2 series); laminae proximally yellow, distally white, 5–10(–14) mm. Disc florets 35–100+; corollas 3–5 mm; anthers ± dark purple. Ray cypselae glabrous. Disc pappi 0 or of 8–14 whitish, ± ovate or elliptic, ± equal scales 0.5–2 mm, not plumose, not adaxially woolly (bases sparsely setose). 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. 21: 263, 266 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

Layia jonesii

provided by wikipedia EN

Layia jonesii is a species of flowering plant in the family Asteraceae known by the common name Jones' tidytips, or Jones' layia.

It is endemic to California, where it is known only from coastal San Luis Obispo County. It grows on clay and serpentine soils.

Description

This is an annual herb growing a glandular but unscented stem to a maximum height near half a meter. The fleshy leaves are linear to lance-shaped, with the lower ones often having lobes and reaching near 7 centimeters in maximum length.

The flower head has an urn-shaped base of rough, hairy phyllaries. The face has a fringe of yellow ray florets with white tips and a center of yellow disc florets with purple anthers. The fruit is an achene; the fruits of the disc florets sometimes have a pappus of scales.

References

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Layia jonesii: Brief Summary

provided by wikipedia EN

Layia jonesii is a species of flowering plant in the family Asteraceae known by the common name Jones' tidytips, or Jones' layia.

It is endemic to California, where it is known only from coastal San Luis Obispo County. It grows on clay and serpentine soils.

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