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Scientific Name – Cerastium tomentosum L. 1753 Synonim – Cerastium columnae ten., Cerastium samnianum Common name(s) – snow in summer. Distribution and Habitat – native in the Caucasus and S-E Europe. Description – perennial, rhizomatous. Flowering stem ascending, branched, 15-40 cm; nonflowering stems prostrate, pubescence dense, white-tomentose. Leaves sessile; blade linear to linear-lanceolate, 10-60 x 2-8 mm, apex obtuse, pubescence dense, whitish-tomentose, eglandular on both surfaces. Inflorescences lax, 3-13 flowered; bracts lanceolate, margins scarious, pubescent. Pedicels ascending, 10-40 mm, white tomentose. Flowers 12-20 mm diameter; sepals narrowly lanceolate-elliptic, 5-7 mm, apex acute, white-tomentose; petals obtriangular, 10-18 mm, apex bifid; 10 stamens. Flowering April-July. Cylindrical capsule, slightly curved, 10-15 mm. Seeds brown, cuneate to ellipsoidal or circular, 15 mm, rugose. 2n = 72 Growth rate – moderate to fast. Tolerances – tolerant of drought. Requirements – well-drained sandy or loamy soils with low fertility; prefer full sun. Management – Propagation – by division or by seeds sown in early spring. Germination usually takes 2-3 weeks at 21 ̊C. When seedlings are large enough to handle transplant and grow on in cooler conditions. Pest and Diseases – Garden Partners – Allium schoenoprasum, Artemisia sp., Eryngium amethystinum, Geranium sylvaticum, Malva moschata, Penstemon birsutus, Stachys byzantina, Veronica spicata. Cultivars – ‘Yoyo’ – leaves silvery, flowers white. Properties and Uses – a commonly grown rock-garden, often escape from cultivation. Curiosity – Bibliography
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See also
Primula cousin - Herbaceous perennial with cylindrical rhizome, native to Europe and Asia, grows through meadows, sunny pastures, edges of woods, from hills to the alpine region. Primula elatior - perennial species, rizomatoasa, originally from Europe to western Asia, growing in mountain areas, pay attention in forests up to 1500 m altitude. Coronilla vary - herbaceous perennial, native to SE Europe, grows on limestone rocks and ravines, arid plains, along the streets, from 0 to 1200 m altitude. Perennial herbaceous plants, 30 - 100 cm tall. Stem cylindrical, with two edges, bark, woody at the base, branched, reddish. Leaves opposite, oblong-lanceolata, top acute-round basis acuminata, margins entire, Revol, Sesia, 1.5-4 cm long, on both sides with black spots. Flowers grouped into numerous terminal corymb Salvia nemorosa - perennial species, native to southeastern Europe, with an area richer in Carpatico-Danubian region, increases the arid grasslands of the plains up to 1000 m altitude. Native of the Mediterranean area, grows in gardens like ornamentals. Flower can be over 1.8 m tall, the purple-pink bracts contrasting with the white flowers. Prefer shelter and deep, moist soil. Gentiana crucial - originated in southern, central and eastern Europe, it grows on sunny pastures on limestone soils, from 200 to 2000 m altitude. Nicotiana tabacum - herbaceous annual, terofita. The product obtained is known cigarettes. Monoecious tree, 6-12 m high. Trunk erect, conical crown, brown bark is exfoliating in small plates. Leaves fell, coriacee, alternate, language oval-elliptic, margin entire, top acuminata, the attenuated, shiny green on top and pubescent towards the bottom, 7-20 x 4.10 cm, petiole 1-1.5 cm long. Herbaceous perennial forms a bush evergreen basal leaves, stems florifere up to 50 cm tall, dark purple. Leaves 25 cm wide, or elliptic obovata language, rim around the base cuneata, top obtuse, long petiole, 3-9 cm long. Panic blossom, flowers pink or dark pink open. |
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