Helianthemum nummularium subsp. obscurum

Helianthemum nummularium subsp. obscurum var.
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	Asteraceae > Helianthemum nummularium obscurum var. ,

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Standard Cyclopedia of Horticulture

Helianthemum chamaecistus, Mill. (H. vulgare, Gartn. H. variabile, Spach). Low procumbent sub- shrub, rarely upright: lvs. petioled, usually flat, ovate to linear-lanceolate, green on both sides, hairy or nearly glabrous, ½ -1 ½ in. long: stipules lanceolate: fls. normally yellow, about 1 in. across, in many-fld loose racemes; outer sepals much shorter than the inner broadly oval ones. Eu., W. Asia., N. Afr.— This is an exceedingly variable species and numerous forms are cult, in European gardens; the following are perhaps the most noteworthy: Var. grandiflorum, Fiek (H. grandiflorum, Lam.). Lvs. ovate to oblong, green on both sides: fls. yellow,1 ¼ in. long. Var. cupreum, Grosser (H. hyssopifolium var. cupreum, Sweet). Lvs. oval to lanceolate, green on both sides: fls. copper- colored, darker toward the base, 1 ¼ - 1 1/3 in. across. Var. tomentosum, Grosser (H. tomentosum, Dun. H. angustifolium, Pers. H. polifolium, Hort.). Lvs. oblong to oblong-lanceolate, flat or revolute at the margin, white-tomentose beneath, ¼ - ¾ in. long: fls. yellow. There is a double- flowered form, var. tomentosum multiplex. Var. roseum, Grosser (H. roseum. Sweet). Lvs. lanceolate, white-tomentose beneath: fls. pink, 1 ¼ in. across. A form with semi-double fls. is var. roseum. multiplex.Var. venustum, Grosser. Lvs. lanceolate, revolute, white-tomentose beneath: fls. crimson with yellow eye, over 1 in. across. Var. mutabile, Grosser. Lvs. ovate-oblong, flat, grayish tomentose beneath: fls. at first light rose, changing to lilac, finally nearly white. Var. stramineum, Grosser. Lvs. oval to oblong-lanceolate, flat, white-tomentose below: fls. bright straw-yellow, over 1 in. across. There is a double-fld. form, var. stramineum multiplex. Var. diversifolium, Grosser. Lvs. oval to oblong- or linear-lanceolate, white-tomentose beneath: fls. purplish pink, the petals with a darker copper-colored blotch at the base. A double-fld. form with purplish red fls. is var. diversifolium multiplex. Var. macranthum, Grosser. Lvs. ovate-oblong, rather large, thinly grayish tomentose beneath: fls. white, nearly 1 1 ¾ in. across, the petals blotched yellow at the base. There is a form with very double fls., var. macranthum multiplex. The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.

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References

• Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963

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