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San Gabriel River dudleya

Dudleya cymosa subsp. crebrifolia

San Gabriel River dudleya
Photo: James Connolly Davis, CC BY-SA 4.0

San Gabriel River dudleya is a rare, small succulent rosette endemic to a few granitic canyons near Azusa in Los Angeles County, California. It is grown mainly by specialist collectors and native plant gardeners, and it needs sharp drainage and strong light.

Family
Crassulaceae (Stonecrop family)
Grows as
Succulent
Light
Full sun
Water
Water deeply but infrequently, letting the soil dry out fully between waterings, and water less in winter.
Soil
Very fast-draining gritty mix, such as cactus mix with added coarse sand or fine gravel.
Temperature
10–30 °C; protect below about 0 °C and from prolonged wet cold
How easy
Moderate

About

Dudleya cymosa subsp. crebrifolia is a subspecies of succulent plant commonly known as the San Gabriel River dudleya. Endemic to Los Angeles County, California, this very distinct subspecies is only known from the granitic slopes of a few canyons at the foot of the San Gabriel Mountains near Azusa. It is characterized by the tightly spaced bracts along its inflorescence and its mustard-yellow flowers that bloom from late June to July. It grows with another rare endemic, Dudleya densiflora.

Where it grows

Dudleya cymosa subsp. crebrifolia is a narrow endemic to Los Angeles County, California, where it is only found in a small number of canyons at the foothills of the San Gabriel Mountains near Azusa. There are six known occurrences, most of which are on U.S. Forest Service land, but a small number are on private property. The populations on private property are threatened by mining, particularly at the type locality of Fish Canyon, where a granite quarry operates.

Other Dudleya plants

Abrams' liveforever · San Bernardino Mountains liveforever · Limestone dudleya · Dudleya cymosa subsp. costatifolia · Abrams' liveforever · Vizcaino liveforever · White-flowered liveforever · Todos Santos liveforever · Anthony's Liveforever · Arizona Chalk Dudleya · Tapertip liveforever · Blochman's liveforever

Text excerpted from the Wikipedia article Dudleya cymosa subsp. crebrifolia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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