Sedum eastwoodiae

Sedum eastwoodiae is a rare species of flowering plant of the stonecrop Crassulaceae family.[2] It is known by its common name Red Mountain stonecrop. It is endemic to Mendocino County, California, where it is known from only four occurrences on Red Mountain, near Ukiah.[1][3] The total number of plants in existence is estimated to be around 5300.[1] They can be found on steep, exposed, rocky mountain slopes of serpentine substrate. This species has also been treated as a subspecies of Sedum laxum.[4]

Sedum eastwoodiae

Critically Imperiled  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Saxifragales
Family: Crassulaceae
Genus: Sedum
Species:
S. eastwoodiae
Binomial name
Sedum eastwoodiae
Synonyms[2]

Cotyledon mendocinoana Fedde
Gormania eastwoodiae Britton
Sedum laxum var. eastwoodiae (Britton) H.Ohba
Sedum laxum subsp. eastwoodiae (Britton) R.T.Clausen

Description

Sedum eastwoodiae is a small perennial succulent plant forming basal rosettes a few centimeters wide. The leaves are 1 to 3 centimeters long with the widest part near the distal end, then narrowing to a rounded or slightly notched tip. Smaller leaves occur farther up the stem. The foliage is blue-green in color, blushing reddish. The inflorescence is a spreading or flat-topped array of many small, star-shaped flowers with red or pink petals up to a centimeter long each, and stamens with red or purplish anthers.

Habitat

This species is known from a small section of habitat on a single mountain where the main potential threat to its existence is mining for nickel, chromium, and cobalt.[4]

References
  1. The Nature Conservancy
  2. "Sedum eastwoodiae (Britton) A.Berger". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved August 22, 2020.
  3. California Native Plant Society Rare Plant Profile
  4. USFWS. Species Assessment & Listing Priority Assignment Form. March, 2009.
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