San Gabriel Mountains dudleya is a rare species that apparently only grows in a few places in the front range canyons of the San Gabriels, and is in the Field Guide to the Rare Plants of the Angeles National Forest.  It is a plant with a short, branched caudex with linear, ± cylindrical leaves covered with a mealy powder, ranging in length from 2-1/4" to 6", and having abruptly pointed tips.  It is not apparent whether the leaves are basal rosette leaves or cauline leaves.  The flowering stems are up to 12" long, or sometimes longer when hanging down from a cliffside location, and the inflorescence is densely-flowered, more or less rounded, with 3 to several branches. The calyx lobes are deltate-ovate and acute-tipped, and the petals are narrowly ovate, 1/4" to 3/8" long, and white or with a pink tint.  This species of dudleya typically inhabits steep, granitic canyon walls at an elevation of 1000' to 1500' in the San Gabriel Mountains, and blooms from June to July.  These pictures were taken in Fish Canyon above Azusa, where it is well established.  I thank Cliff McLean for tipping me off about them.

Click here for Latin name derivations: 1) Dudleya 2) densiflora.
Pronunciation: DUD-lee-a den-si-FLOR-a.
Click here for Botanical Term Meanings.