Petrorhagia


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Plant Characteristics
Origin: ?
Cultivation
Exposure: ?"?" is not in the list (sun, part-sun, shade, unknown) of allowed values for the "Exposure" property.
Water: ?"?" is not in the list (wet, moist, moderate, dry, less when dormant) of allowed values for the "Water" property.
Scientific Names



Read about Petrorhagia in the Standard Cyclopedia of Horticulture 

Tunica (Latin, a tunic or coal, from the imbricated involucre). Caryophyllaceae. Annual or perennial hardy herbs, usually slender but stiff garden plants, with the habit of Gypsophila but botanically more nearly allied to Dianthus; sometimes grown in flower-gardens.

Leaves narrow: fls. as in Dianthus, but smaller, gathered in cymose panicles or heads; calyx turbinate or elongate-tubular, obtusely 5-toothed, 5-15-nerved; petals 5, claw elongate, blade retuse or emarginately 2-cleft; stamens 10; ovary 1-celled: caps. ovoid or oblong, dehiscent by 4 valves.—About 20 species, S. Eu. and E. Asia. Prop. by seeds or division. CH


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Species

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