Comments

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Some specimens from north-central California and southwestern Oregon have been named Arenaria pumicola var. californica. R. L. Hartman (1993) considered those plants to be robust forms of Eremogone aculeata, not deserving formal recognition. Based on work by M. F. Baad (1969), they warrant further study.

Reports of Eremogone aculeata from Arizona, New Mexico, and Wyoming are erroneous.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Plants strongly mat-forming, glaucous, often with woody base. Stems erect, 7-25(-30) cm, densely stipitate-glandular distally. Leaves: basal leaves persistent; cauline leaves in 1-3 pairs, abruptly reduced distal to lowest pair; basal blades ascending or often arcuate-spreading, needlelike, (0.5-)1-2.5(-3.5) cm × 0.5-1.5 mm, rigid, herbaceous, apex spinose, glabrous to puberulent, glaucous. Inflorescences 5-25+-flowered, open cymes. Pedicels 3-25 mm, stipitate-glandular. Flowers: sepals 1-3-veined, lateral veins less developed or all obscure, ovate, 3-4.5 mm, to 6 mm in fruit, margins broad, apex usually obtuse to rounded, abruptly acute, sparsely to densely stipitate-glandular; petals white, obovate to oblanceolate, 4.5-10 mm, 1.5-3 times as long as sepals, apex rounded; nectaries as lateral and abaxial rounding, with slight lateral expansion, at base of filaments opposite sepals, 0.3 mm. Capsules 5-9 mm, glabrous. Seeds yellowish tan to gray, ellipsoid-oblong, 1.8-2.5(-3.2) mm, tuberculate; tubercles rounded, elongate. 2n = 22.
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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. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Distribution

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Calif., Idaho, Mont., Nev., Oreg., Utah, Wash.
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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. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Flowering/Fruiting

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Flowering summer-early fall.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 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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Habitat

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Rocky slopes, alluvium, volcanic areas; 1500-3400m.
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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. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Synonym

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Arenaria aculeata S. Watson, Botany (Fortieth Parallel), 40. 1871; A. fendleri A. Gray var. aculeata (S. Watson) S. L. Welsh; A. pumicola Coville & Leiberg var. californica Maguire
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. 5 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