Difference between revisions of "Sempervivum tectorum"

Revision as of 17:58, 23 June 2009

Read about Sempervivum tectorum in the Standard Cyclopedia of Horticulture
Sempervivum tectorum, Linn. (S. robustum, Jord. & Fourr. S. purpurascens, Schott). Houseleek. Old-man-and-woman. Fig. 3602. Developed barren rosettes 3-4 in. diam., abundantly stoloniferous, the new rosettes crowded and sessile: lvs. 50-60 to a rosette, obovate-cuneate, cuspidate, 1 1/2 – 2 or finally 3 x 5/8-3/4 in., pale green, with a distinct red-brown tip; cauline lvs. oblong-lanceolate, acute: fl.-st. including infl. about 1 ft. high, densely pilose: fls. 11-15- mostly 12-merous, 3/4-l in. across, pale red, in a scorpioid, 10-12-branched panicle 5-6 x 3-4 in.; calyx densely pilose, segms. lanceolate; petals linear, keeled, the keel deeper red. Eu. and Orient. C.L.A. 25, March, p. 54.—Variable. Var. cupreum, Hort., is said to have large rosettes which are glaucous and rose-colored; it flowers rarely. Var. expansum, Hort., is said to have broader lvs. and more open rosettes than the type. Var. pyrenaicum, Hort., is offered in the trade. Var. rubrum, Hort., has been grown in botanic gardens. Var. violaceum, Hort., has been grown in botanic gardens. 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 It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article.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.

Plant Characteristics
Lifespan:	⌛	perennial
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
Crassulaceae >	Sempervivum >	tectorum >

Sempervivum Tectorum 'Greenii'

Sempervivum tectorum (Common Houseleek^[1]) is a perennial plant of the genus Sempervivum. It is used as an ornamental plant^wp.

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+Sempervivum tectorum, Linn. (S. robustum, Jord. & Fourr. S. purpurascens, Schott). Houseleek. Old-man-and-woman. Fig. 3602. Developed barren rosettes 3-4 in. diam., abundantly stoloniferous, the new rosettes crowded and sessile: lvs. 50-60 to a rosette, obovate-cuneate, cuspidate, 1 1/2 – 2 or finally 3 x 5/8-3/4 in., pale green, with a distinct red-brown tip; cauline lvs. oblong-lanceolate, acute: fl.-st. including infl. about 1 ft. high, densely pilose: fls. 11-15- mostly 12-merous, 3/4-l in. across, pale red, in a scorpioid, 10-12-branched panicle 5-6 x 3-4 in.; calyx densely pilose, segms. lanceolate; petals linear, keeled, the keel deeper red. Eu. and Orient. C.L.A. 25, March, p. 54.—Variable. Var. cupreum, Hort., is said to have large rosettes which are glaucous and rose-colored; it flowers rarely. Var. expansum, Hort., is said to have broader lvs. and more open rosettes than the type. Var. pyrenaicum, Hort., is offered in the trade. Var. rubrum, Hort., has been grown in botanic gardens. Var. violaceum, Hort., has been grown in botanic gardens.
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 __NOTOC__{{Plantbox
 | name = ''Sempervivum tectorum''