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Published In: Species Plantarum 1: 423. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: A north temperate genus with c. 250 species. Well represented in Europe and USSR. In Pakistan 7 species are found, some growing at high altitude.


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Annual or perennial herbs, often caespitose or with decumbent stems, glabrous or glandular hairy. Leaves subulate, setaceous, linear or ovate, elliptic, obovate or orbicular. Inflorescence a mono or dichasial cyme. Sepals 5, free, 1 (-3) nerved. Petals white, 5, usually entire. Stamens 10. Styles 3. Capsule conical to globose dehiscing by 6 teeth. Seeds reniform to subreniform, smooth, turberculate or papillose.

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1 Erect annuals. Leaves not subulate (2)
+ Caespitose, mat-forming perennials. Leaves fasciculate, subulate, often spiny (5)
2 (1) Leaves subpetiolate, orbicular or often obovate. Capsule usually as long as the sepals (3)
+ Leaves sessile, usually ovate to ovate-elliptic or sometimes obovate. Capsule longer than the sepals (4)
3 (2) Bracts lanceolate. Leaves mostly orbicular 4 Arenaria orbiculata
+ Bracts ovate. Leaves obovate or ovate-elliptic 3 Arenaria neelgherrensis
4 (2) Capsule not flask-shaped, not thickened at the base 2 Arenaria leptoclados
+ Capsule flask-shaped, thickened at the base 1 Arenaria serpyllifolia
5 (1) Flowers solitary. Sepals 6-9 mm. Capsule included (6)
+ Flowers in corymbose-cymes. Sepals 3-5 mm. Capsule exceeding the sepals 5 Arenaria griffithii
6 (5) Sepals 6-6.5 mm. Pedicel shorter than the sepals, glabrous. Flowering shoots leafy 7 Arenaria bryophylla
+ Sepals 7-9 mm. Pedicels as long as the sepals, pilose. Flowering shoots with 1-2 pairs of leaves 6 Arenaria festucoides
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