Cynoglossum
Read about Cynoglossum in the Standard Cyclopedia of Horticulture
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Cynoglossum (Greek, hound's tongue, from the shape and soft surface of the lvs. of the commonest species). Borraginaceae. A widely dispersed genus of little horticultural interest, being mostly tall, coarse, weedy herbs. Lvs. alternate: fls. always in elongated, often 1-sided racemes. — Species 75. C. officinale, Linn., Fig. 1190 (stick-tight), has a bur that becomes attached to clothing and to fleece of sheep. It is a biennial weed, naturalized from the Old World :grows about 2 ft. high in pastures and waste places of the Atlantic states, and has soft-pubescent, lanceolate lvs., and dull red-purple (sometimes white) fls. in panicled racemes. Root and herbage possess medicinal properties. C. grande, Douglas. Once cult. from Calif. as a hardy border perennial; grows about 2 ft. high, with lower lvs. ovate - oblong, or somewhat heart-shaped at the base, acute or acuminate, 4-8 in. long, on margined petioles of about the same length: upper lvs. smaller, ovate to lanceolate, abruptly contracted into shorter winged petioles: fls. violet or blue. For C. appenninum, Linn., see Solenanthus. A new plant, C. furcatum, Wall., has recently been tick-tight intro. It is a hairy herb, 1-3 ft. high, with large lvs. and numerous blue fls. in clusters as in forget-me-not. India. Fls. in June. C. amabile, Stapf & Drummond. Allied to C. furcatum, but has larger fls. Perennial. S.W. China. N.TAYLOR
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Cultivation
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Propagation
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Pests and diseases
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Species
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References
External links
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