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Tuctoria mucronata
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Crampton's Tuctoria
( Tuctoria mucronata )
Tuctoria mucronata
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Crampton's Tuctoria (Tuctoria mucronata)
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The grass
Tuctoria mucronata
, which is known by several common names including prickly spiralgrass, Solano grass, and Crampton's tuctoria, is a federally listed endangered plant species endemic to two counties in northern California. It is a small annual, with stems growing decumbent against the ground to a maximum length of 12 cm, and turning upward at the tips. The leaves are 2-4 cm long, and secrete a sticky, aromatic juice. In the spring, the grass bears a small inflorescence 1. 5-6 cm long, with numerous crowded spikelets. Solano grass is a vernal pool plant. It is only found in these seasonally wet areas, a type of habitat which is endangered. This species is thought to have once grown in isolated parts the northern Sacramento-San Joaquin Delta, in areas which flooded during the wet season, but any former habitat there has been long since reclaimed for agriculture. Only a few individuals of the plant now exist, mostly in Yolo County. It was found during the 1990s at Jepson Prairie Preserve, an area dedicated to conserving vernal pool habitat, but it may no longer exist there.
Plant Description
Plant Type
Grasses
Flower Color
Brown
Landscaping Information
Natural Setting
Climate
Annual Precipitation: 18.3" - 19.0", Summer Precipitation: 0.21" - 0.28", Coldest Month: 48.3" - 48.5", Hottest Month: 72.4" - 74.5", Humidity: 1.82" - 21.21", Elevation: 13" - 30"
Alternative Names
Common Names
: Prickley Spiralgrass, Prickly Spiralgrass, Solano Grass
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Crampton's Tuctoria
Tuctoria mucronata
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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