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Loch Lomond Button-celery
Eryngium constancei
  
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About Loch Lomond Button-celery (Eryngium constancei) Nurseries Show All Photos Eryngium constancei is a species of flowering plant in the carrot family known by the common name Loch Lomond button celery, or Loch Lomond coyote thistle. It is endemic to California, where it is known from only three occurrences north of the San Francisco Bay Area. One of the populations is at the Loch Lomond Vernal Pool Ecological Reserve at Loch Lomond in Lake County. The plant appears mainly in vernal pools. It is endangered on the state and federal levels. This is a hairy, somewhat fleshy, perennial herb growing branching stems to 20 or 30 centimeters in height. Dark green, narrowly spade-shaped leaves grow on long petioles and may grow erect with the stems or lie flat along the ground. They may have smooth to toothed to sharply serrated edges. This is a hairy, somewhat fleshy, perennial herb growing branching stems to 20 or 30 centimeters in height. Dark green, narrowly spade-shaped leaves grow on long petioles and may grow erect with the stems or lie flat along the ground. They may have smooth to toothed to sharply serrated edges. Flower heads are less than a centimeter wide with a few longer, straight, sharp bracts around the base. The tiny flowers packed into the rounded head are generally white. This plant is threatened by destruction of its fragile vernal pool habitat by a number of causes, including sediment-rich runoff into the pools from logging activity, erosion, development, and off-road vehicles.
Plant Description
Plant Type
Annual Herb, Perennial Herb

Max. Height
7.9 - 11.8 in (20.1 - 30 cm)

Native Status
Native - Rare

Natural Setting
Elevation ?
492' - 3337'

Annual Precip. ?
25.5" - 60.0"

Summer Precip. ?
0.32" - 0.69"

Coldest Month ?
44.0° F - 48.0° F

Hottest Month ?
67.5° F - 74.0° F

Humidity ?
1.83 vpd - 21.84 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Loch Lomond Button Celery, Loch Lomond Coyote Thistle, Loch Lomond Eryngo


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Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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