|Standard Cyclopedia of Horticulture|
Ceratostigma (Greek, horned stigma). Plumbaginaceae. Diffuse glabrous perennial herbs or sub-shrubs, one of which is in cultivation as a bedding and border plant.
Ceratostigma differs from Plumbago in having no glands on the calyx, stamens adnate to the corolla tube, fls. in dense clusters rather than spicate, and other technical characters: lvs. alternate, lanceolate or obovate, more or less ciliate: fls. mostly in terminal heads, blue or rose; calyx tubular, deeply 5-parted, the lobes narrow; corolla salver-shaped, the tube long and slender, the limb spreading and with 5 obovate obtuse or retuse lobes; stamens 5, attached on the corolla tube: fr. a 5-valved caps, inclosed in the calyx. — Species 4 or 5, in N. China, Himalayas, Abyssinia.
Under the name C. Polhilli, a dwarf and creeping shrub, with delicate lavender fls.; is mentioned in British journals as coming from high elevations in W. China and giving promise as an outdoor subject.CH
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Pests and diseases
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- Selected specieswp
- Ceratostigma abyssinicum
- Ceratostigma griffithii
- Ceratostigma minus
- Ceratostigma plumbaginoides
- Ceratostigma ulicinum
- Ceratostigma willmottianum
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- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
- w:Ceratostigma. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
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