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Succulenta (Netherlands) 78: 40 1999
Family: CRASSULACEAE
Origin and Habitat: The distribution area of Sempervivum globiferum subs. hirtum ranges from the Alpes Maritimes in France and Italy to the East Carpathians and to the north-east, extending to Murmansk in Russia.
Synonyms:
- Sempervivum globiferum subs. hirtum (L.) 't Hart & Bleij
- Diopogon hirtus (L.) H.P.Fuchs ex H.Huber
- Jovibarba globifera subs. hirta (L.) J.Parn.
- Jovibarba hirta (L.) Opiz
- Sempervivum hirtum L.
Sempervivum globiferum subs. hirtum (L.) 't Hart & Bleij
Succulenta (Netherlands) 78: 40 1999
Synonymy: 40
- Sempervivum globiferum subs. hirtum (L.) 't Hart & Bleij
- Diopogon hirtus (L.) H.P.Fuchs ex H.Huber
- Jovibarba globifera subs. hirta (L.) J.Parn.
- Jovibarba hirta (L.) Opiz
- Sempervivum hirtum L.
- Diopogon austriacus Jord. & Fourr.
- Sedum hirtum Loudon
- Sempervivum adenophorum Borbás
- Jovibarba hirta subs. adenophora (Borbás) Á.Löve
- Sempervivum globiferum subs. glabrescens (Sabr.) M.Werner
- Jovibarba globifera subs. glabrescens (Sabr.) Holub
- Jovibarba globifera var. glabrescens (Sabr.) Hadrava & Miklánek
- Sempervivum hirtum f. glabrescens Sabr.
- Sempervivum globiferum var. hillebrandtii (Schott) M.Werner
- Jovibarba hirta var. hillebrandtii (Schott) Soó
- Jovibarba hirta f. hillebrandtii (Schott) Konop & Bendák
- Sempervivum arenarium var. hillebrandtii (Schott) Neumayer
- Sempervivum hillebrandtii Schott
- Sempervivum hirtum var. hillebrandtii (Schott) Hayek
- Sempervivum hirtum f. hillebrandtii (Schott) Konop & Bendák
- Sempervivum globiferum var. preissianum (Domin) M.Werner
- Jovibarba globifera subs. preissiana (Domin) Holub
- Jovibarba globifera var. preissiana (Domin) Hadrava & Miklánek
- Jovibarba preissiana (Domin) Omelczuk & Chopik
- Sempervivum preissianum Domin
- Sempervivum hirsutum Pollini
- Sempervivum hirtellum Schott ex Fuss
- Jovibarba hirtella (Schott ex Fuss) Soó
- Sempervivum hirtum var. amblysepalum Borbás
- Jovibarba hirta var. amblysepala (Borbás) Soó
- Sempervivum neilreichii Schott, Nyman & Kotschy
- Jovibarba hirta subs. neilreichii (Schott, Nyman & Kotschy) Soó
- Jovibarba hirta var. neilreichii (Schott, Nyman & Kotschy) Konop & Bendák
- Jovibarba hirta f. neilreichii (Schott, Nyman & Kotschy) Konop & Bendák
- Sempervivum hirtum subs. neilreichii (Schott, Nyman & Kotschy) Schwarz
- Sempervivum simonkaianum Degen
- Sempervivum tatrense Domin
- Jovibarba hirta var. tatrense (Domin) Soó
- Jovibarba hirta subs. tatrensis (Domin) Á.Löve & D.Löve
- Jovibarba hirta var. tatrensis (Domin) Konop & Bendák
Sempervivum globiferum L.
Sp. Pl. 464 1753
Synonymy: 9
- Sempervivum globiferum L.
- Diopogon globifer (L.) Leute
- Jovibarba globifera (L.) J.Parn.
- Sedum globiferum (L.) Pall.
- Jovibarba hirta subs. borealis (H. Huber) Soó
- Diopogon hirtus subs. borealis H.Huber
- Sempervivum soboliferum Sims
- Jovibarba sobolifera (Sims) Opiz
- Sedum soboliferum (Sims) E.H.L.Krause
Sempervivum globiferum subs. allionii (Jord. & Fourr.) 't Hart & Bleij
Succulenta (Netherlands) 78: 40 1999
Synonymy: 7
- Sempervivum globiferum subs. allionii (Jord. & Fourr.) 't Hart & Bleij
- Diopogon allionii Jord. & Fourr.
- Diopogon arenarius subs. allionii (Jord. & Fourr.) Leute
- Diopogon hirtus subs. allionii (Jord. & Fourr.) H.Huber
- Jovibarba allionii (Jord. & Fourr.) D.A.Webb
- Jovibarba globifera subs. allionii (Jord. & Fourr.) J.Parn.
- Jovibarba hirta subs. allionii (Jord. & Fourr.) Soó
Sempervivum globiferum subs. arenarium (W.D.J.Koch) 't Hart & Bleij
Succulenta (Netherlands) 78: 40 1999
Synonymy: 9
- Sempervivum globiferum subs. arenarium (W.D.J.Koch) 't Hart & Bleij
- Diopogon arenarius (W.D.J.Koch) Leute
- Diopogon hirtus subs. arenarius (W.D.J.Koch) H.Huber
- Jovibarba arenaria (W.D.J.Koch) Opiz
- Jovibarba globifera subs. arenaria (W.D.J.Koch) J.Parn.
- Jovibarba hirta subs. arenaria (W.D.J.Koch) J.Parn.
- Sempervivum arenarium W.D.J.Koch
- Jovibarba arenaria subs. pseudohirta (Leute) Holub
ENGLISH: Rough houseleek, Hairy orpine, Hairy House-leek, Common houseleek
Description: Long cultivated under the synonym Jovibarba hirtaSN|32794]]SN|32794]], Sempervivum soboliferumSN|32770]] subs. hirtum is a rosettes succulent commonly know as the hairy house-leek. It is distinguished by roughly fringed leaves and flowers. The flowers are yellowish, almost bell shaped, forming a dense corymb, on stems 15-20 cm high. If the plants are dried, the leaves are rolled; if not, they spread out.
Rosettes: Mostly open, 2.5-5(-7) cm in diameter. The offsets are globular and
emerge from the lower leaves only on stems which are thin and evanescent.
Leaves: Thick, fleshy, oblong-lanceolate to broadly ovate in form, spreading, acute, widest at or below the middle, patent or erect, about twice as long, 15-20 (-30) x 5-7 mm as they are broad, strongly fringed, uniform greenish with a grey puina, sometime with red or reddish brown tips, marginal cilia stiff, spreading, white, equal in length.
Inflorescence (corymb): Dense on flowering branch 10-15(-20) cm tall, stout, with glandular-pubescent, erect leaves.
Flowers: Yellowish, starry, almost campanulate. Sepals usually with normal hairs. Petals more erect and narrow-lance-shaped, almost obtuse, with a long fringe (glandular-pubescent) on their margin, strongly incurved. Filaments glandular-pubescent. Style 4-5 mm long. Nectar-glands about 0.7 x 1 mm, yellow-tipped.
Blooming season: Summer.
Similar species: The distinctness of Sempervivum hirtum from Sempervivum soboliferumSN|32770]] is a matter of opinion (W.L. Tjaden 1970).
Subspecies, varieties, forms and cultivars of plants belonging to the Sempervivum globiferum group
Sempervivum globiferum subs. hirtum has been known from the 16th. century having been described by Clusius, and collected by Joachim Burser (1583-1639) in the Radstadter Tauern Alps of Upper Styria. Sempervivum globiferum (syn: Jovibarba globifera) comprises four closely related subspecies, the nominate form (subs. globiferum), Sempervivum globiferum subs. allionii (sym: Jovibarba allionii), Sempervivum globiferum subs. arenarium (syn: Jovibarba arenaria) and Sempervivum globiferum subs. hirtum (syn: Jovibarba hirta). Previously, the epithet "globiferum" was used incorrectly for some species of the genus Sempervivum L. with yellow flowers. However, after unification of the above mentioned four species into one species the epithet "globiferum" has priority. [Jovibarba sobolifera (J. sims) Opiz is the synonym of J. globifera (L.) J. Parn subsp. globifera]. The epithets "soboliferum", "hirtum", "arenarium", and "allionii" have been used in various nomenclatural combinations, at different ranks within different species creating a taxonomic nightmare. The poor taxonomic distinction is supported by the occurrence of intermediate forms. A great amount of within-population variability is common in Sempervivum globiferum, especially in the contact zone of its different subspecies (e.g. West Carpathians).
- Sempervivum globiferum L.: (subsp. globiferum) has rosette-leaves widest above the middle and incurved, giving a closed, globose rosette. The sepals are glabrous.
- Sempervivum globiferum subs. allionii (Jord. & Fourr.) 't Hart & Bleij
- Sempervivum globiferum subs. arenarium (W.D.J.Koch) 't Hart & Bleij: has smaller rosettes, typically about 25 mm diameter, sometimes red-tipped blades.
Sempervivum globiferum subs. hirtum (L.) 't Hart & Bleij: has rosette-leaves widest at or below the middle, patent or erect forming an open rosette. Leaves with a grey pruina an long marginal cilia. Sepals hairy.
Bibliography: Major references and further lectures
1) Roman Letz “Jovibarba globifera (L.) J. PARN. (Crassulaceae, Sempervivoideae) in Bratislava (Slovakia): notes on taxonomy, nomenclature, distribution, ecology and conservation status” Biologia, Bratislava, 52/1: 41-47, 1997
2) Urs Eggli “Illustrated Handbook of Succulent Plants: Crassulaceae” Springer Science & Business Media, 06 December 2012
3) “Encyclopaedia Londinensis, or, Universal dictionary of arts, sciences, and literature, Volume 23” 1828
4) William Robinson “Hardy Flowers” Applewood Books, 2009
5) W.L. Tjaden “Jovibarba sobolifera (Sims) Opiz. The wrong name for the Hen and Chicken Houseleek” The Sempervivum Society Journal Volume 1 (1970) n°2
Cultivation and Propagation: Sempervivum tectorumSN|19333]] subs. hirtum is an interesting plant and very easy to grow in container or in the rock garden. It grows well in any position where the common Houseleek (Sempervivum tectorumSN|19333]]) may be grown, and in any soil.
Soil: Although it grows on limestone substrata, it does not seem fussy about conditions in the garden. Require a well drained succulent soil mix. Outdoors it will spread itself through narrow locations between rockery stones. It does not prefer rich loamy soil; gritty dirt with pea gravel suits it.
Watering: It takes little water & could rot if watered too often. During the growing season, the plants are watered and allowed to dry slightly before watering again. Although they can take a great deal of drought, they seem to do better with regular (but moderated) watering. During the winter months, plants are watered very little.
Exposition: It need full sun to light shade and tolerates shade, but a sunny spot is nicest, though in warmer climates it needs protection from too much sun because it is not very heat tolerant.
Frost Tolerance: Hardy at least to -12°C (or less).
Remarks: After the plant blooms and sets seed it will die, but there will be many offsets to take its place.
Uses: It is choicest species for the rock-garden and borders, it can be used for edgings, lines and panels in the flower garden, and naturalized on walls, ruins, or any position where the Common Houseleek thrives.
Propagation: Is very easily propagated by division of larger clumps or by offsets.
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