Skip Navigation
Sign In
  • Home
  • Search
    • Search Collections
    • Map Search
  • Chicago Botanic Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Denver Botanic Gardens
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Desert Botanical Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • NY Botanical Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Marie Selby Botanical Gardens
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Sitemap

Sempervivum

Sempervivum
Family: Crassulaceae
Sempervivum image
  • FNA
  • Gleason & Cronquist
  • Resources
Richard A. Lis in Flora of North America (vol. 8)
Herbs, perennial, monocarpic, not viviparous, 1-6 dm, pubescent or glabrous. Stems erect, (compressed), not branched, succulent. Leaves persistent, forming basal rosette, alternate, sessile, not connate basally; blade oblanceolate to obovate, laminar to semiterete, 1.5-4(-6) cm, succulent, base not spurred, margins ciliate; veins not conspicuous. Inflorescences terminal cymes. Pedicels absent or to 5 mm. Flowers erect, 8-16-merous; sepals ± connate basally, all alike; petals spreading, distinct, pink to purple; calyx and corolla not circumscissile in fruit; nectaries quadrate; stamens 2+ times as many as sepals; filaments free; pistils erect, connivent; ovary base truncate; styles nearly as long as ovary. Fruits erect. Seeds (brown), ellipsoid, ribbed.

Taxonomic circumscription of Sempervivum has been problematic since Linnaeus described the first six species. As few as 40 and as many as 100 taxa have been assigned to the genus, and names given to forms, cultivars, and hybrids. The most recent complete treatment, by H. ´t Hart et al. (2003), provides an excellent summary of the genus and taxonomic synonyms.

Vascular plants of NE US and adjacent Canada
Fls 6-40-merous; pet distinct or united only at base; stamens twice as many as the pet, the filaments usually pubescent at least at base; carpels distinct or nearly so, the ovaries pubescent, the styles outcurved; fr follicular; seeds numerous; succulent perennials with dense, monocarpic rosettes of broad, flat, alternate, entire, ciliate, sessile lvs, acaulescent in the vegetative phase, and reproducing vegetatively by axillary stolons or seldom by division of the rosettes. 25, Eurasia.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within inventory project: Arizona Flora
Sempervivum arachnoideum
Media resource of Sempervivum arachnoideum
Map not
Available
Sempervivum arenarium
Media resource of Sempervivum arenarium
Map not
Available
Sempervivum atlanticum
Media
not available
Map not
Available
Sempervivum braunii
Media resource of Sempervivum braunii
Map not
Available
Sempervivum caespitosum
Media
not available
Map not
Available
Sempervivum calcareum
Media resource of Sempervivum calcareum
Map not
Available
Sempervivum globiferum
Media resource of Sempervivum globiferum
Map not
Available
Sempervivum grandiflorum
Media resource of Sempervivum grandiflorum
Map not
Available
Sempervivum heuffelii
Media resource of Sempervivum heuffelii
Map not
Available
Sempervivum hirtum
Media resource of Sempervivum hirtum
Map not
Available
Sempervivum leucanthum
Media
not available
Map not
Available
Sempervivum marmoreum
Media
not available
Map not
Available
Sempervivum montanum
Media resource of Sempervivum montanum
Map not
Available
Sempervivum pittonii
Media resource of Sempervivum pittonii
Map not
Available
Sempervivum pumilum
Media
not available
Map not
Available
Sempervivum tectorum
Media resource of Sempervivum tectorum
Map not
Available
Sempervivum transcaucasicum
Media resource of Sempervivum transcaucasicum
Map not
Available
Sempervivum wulfenii
Media resource of Sempervivum wulfenii
Map not
Available
Sempervivum ×alatum
Media
not available
Map not
Available
Institute for Museum and Library Services KU BI Logo Logo for the Biodiversity Knowledge Integration Center

This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

EcoFlora is part of the SEINet Portal Network. Learn more here.

Powered by Symbiota.