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Mt. Hamilton Tickseed

Coreopsis hamiltonii (Elmer) H. K. Sharsmith

Description

provided by eFloras
Annuals, (3–)10–20+ cm. Leaf lobes oblong to linear, 1–8(–15) × 0.5–1 mm. Peduncles 3–9(–18) cm. Calyculi of 3–5 oblong to linear bractlets 1–3(–5) mm. Phyllaries 8, ± lance-ovate, 4–8 mm. Ray florets 8; laminae 3.5–8 mm. Disc florets ca. 40; corollas 2.5–3.5 mm. Paleae seldom basally adnate to and falling with disc cypselae. Ray cypselae narrowly obovate, 5–6 mm. Disc cypselae narrowly oblanceolate, 4–5 mm; pappi ca. 1 mm. 2n = 24.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 187, 188 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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Synonym

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Leptosyne hamiltonii Elmer, Bot. Gaz. 41: 323. 1906
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 187, 188 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

Coreopsis hamiltonii

provided by wikipedia EN

Coreopsis hamiltonii, the Mt. Hamilton coreopsis, is a rare California species of Coreopsis in the family Asteraceae. It is found only in a small region including Mount Hamilton and the Diablo Range in the southwestern San Francisco Bay Area (Alameda, Santa Clara, and Stanislaus Counties).[3][4][5]

Description

Coreopsis hamiltonii typically grows 10–20 centimetres (3.9–7.9 in) tall or sometimes taller when in bloom. The foliage is low growing, producing bright golden yellow colored flower heads and red purplish tinted peduncles. The foliage is deeply cut with a thin ferny shape.[6][7]

It can be found blooming from March to May in California, where plants are found growing from 600–1,300 metres (2,000–4,300 ft) above sea level.[6]

References

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Coreopsis hamiltonii: Brief Summary

provided by wikipedia EN

Coreopsis hamiltonii, the Mt. Hamilton coreopsis, is a rare California species of Coreopsis in the family Asteraceae. It is found only in a small region including Mount Hamilton and the Diablo Range in the southwestern San Francisco Bay Area (Alameda, Santa Clara, and Stanislaus Counties).

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Wikipedia authors and editors
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wikipedia EN