Sempervivum urbicum C.Sm. ex Hornem.
Aeonium pseudourbicum Bañares
Aeonium urbicum (C.Sm. ex Hornem.) Webb & Berthel.
Dinner plate aeonium
Dinner plate aeonium is so-called because the large rosettes of overlapping, spade-shaped leaves form bowl-shaped clusters. It is native to the Canary Island of Tenerife. They are not found naturally in North America.
Plants: This succulent plant forms a rosette up to 1½′ (45 cm) wide, on a stem as much as 4′ (1.2 m) high.
Leaves: The central leaf cluster is a flattish sphere and may reach 1½′ (50 cm) in diameter. It will not branch unless its central point is damaged. Leaves are spoon-shaped, yellowish green to dark green, often with reddish margins. Each leaf is up to 9 ⨉ 2″ (22 ⨉ 5.5 cm).
Flowers: A large, dramatic dome-shaped flower cluster, comprised of hundreds of small greenish white to pink star-shaped flowers, may appear. After flowering, though, some sources say the plant dies (“monocarpic“).
Fruits: ?
Habitats: Native to Tenerife, in the Canary Islands, at elevations of 164–3281′ (50–1000 m). It favors open, very dry areas of the island on rocks, mountain ridges, and old roofs.
Online References:
2/24/2010 · San Diego (Quail) Botanic Garden, Encinitas, California
ID is uncertain 
2/24/2010 · San Diego (Quail) Botanic Garden, Encinitas, California · ≈ 3 × 2′ (98 × 65 cm)
ID is uncertain 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Rosidae | Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more |
| Order | Rosales | Rose family and eight others |
| Family | Crassulaceae | Succulents that store water in leaves |
| Genus | Aeonium | Means “ageless” (not sure why); plants have a basal rosette of leaves |
| Species | urbicum | “Urban“ |
Aeonium urbicum description by Thomas H. Kent, not updated.
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