Cerastium Cerastium, Pers.

49. C. diffusum Pers. View in CoL , Syn. Pl. 1: 520 (1805)

( C. tetrandrum Curtis ).

Annual up to 30 cm; stem with glandular and usually some eglandular hairs. Leaves 5-20 mm, lower oblanceolate to spathulate, upper ovate to elliptical, hairy. Pedicels much longer than sepals; bracts usually herbaceous. Sepals 4-9 mm, ovatelanceolate to lanceolate, acute or acuminate, with scarious margin at apex for up to pj their length, with glandular hairs, and some eglandular hairs not exceeding the apex. Petals shorter than sepals, bifid for c. | of their length, with branched veins; stamens and styles 4-5. Capsule 5-10 mm. Seeds 0-4-0-7 mm, yellowish to chestnut-brown, bluntly tuberculate. S., W. & C. Europe, extending northwards to S. Sweden and eastwards to Ukraine. Au Be Br Co Cz Da Fa Ga Ge Gr Hb Ho Hs Hu It Ju Lu No Po Rs (W, K,?E) Sa Si Su Tu. 1 Sepals 7-9 mm; capsule 7-10 mm (c) subsp. subtetrandrum

1 Sepals 4-7 mm; capsule 5-7 mm

2 Flowers 5-merous; petals 4 times as long as wide (a) subsp. gussonei

2 Flowers4 (-5)-merous; petals3 timesaslongaswide (b) subsp. diffusum