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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

ARENARIA SANDWORT
Annual, perennial herb, erect to mat-forming, taprooted. Leaf: not congested at base of flowering stems; blades narrowly lanceolate to ovate; veins 1–5. Inflorescence: terminal or axillary; flowers 1–many; peduncles, pedicels 1–50 mm. Flower: sepals 5, ± free, 1.5–4 mm, ± lanceolate to widely ovate, glabrous to glandular-hairy; petals 0 or 5, 1.5–6 mm, entire; stamens 10; styles 3, 0.5–2 mm. Fruit: capsule, ovoid to urn-shaped; teeth 6, ascending to recurved. Seed: 8–20, gray- or dark brown.
210 species: northern temperate, especially mountains, South America, Eurasia. (Latin: sand, a common habitat) [Hartman, Rabeler, & Utech 2005 FNANM 5:51–56] Based in part on molecular evidence, most taxa moved to Eremogone.
Unabridged references: [McNeill 1980 Rhodora 82:495–502; Hartman, Rabeler, & Utech 2005 FNANM 5:51–56]
Unabridged note: Based in part on molecular evidence, taxa in 2 of McNeill's subgenera here included in Eremogone.

Key to Arenaria

1. Annual; leaf blade ± ovate, veins generally 3–5 ..... A. serpyllifolia var. serpyllifolia

1' Perennial herb; leaf blade lanceolate to oblanceolate to linear or needle-shaped, vein ± 1

2. Flowers few to many in cyme, terminal or axillary; petals 1.5–3.5 mm; stem rounded, dull, hairs minute, down-curved ..... A. lanuginosa var. saxosa

2' Flower 1, axillary; petals 5–6 mm; stem angled or grooved, shiny, glabrous except at nodes ..... A. paludicola

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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