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Coves' Cassia
Senna covesii
  
About Coves' Cassia (Senna covesii) 2 Nurseries Carry This Plant Senna covesii (Desert Senna, Coues' Senna, Rattleweed, "rattlebox", "dais" or "Cove Senna") is a perennial subshrub in the family Fabaceae, native to the Mojave Desert in southeastern California, southern Nevada, and Arizona in the United States, and northern Baja California in Mexico. It is found on desert plains and in sandy washes between 500-600 meter altitude, and very common in Joshua Tree National Park, and is also found in the Sonoran Desert. The specific name honors ornithologist Elliott Coues. It grows to 30-60 centimeter tall, and is leafless most of the year. The leaves are pinnate, 3-7 centimeter long, with 2-3 pairs of leaflets (no terminal leaflet), the leaflets elliptical, 1-2.5 centimeter long. The flowers are yellow in color, with five rounded petals about 12 millimeter long.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1 - 2 ft tall

Flower Color
Flower Color
Yellow

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Soil Drainage
Soil Drainage
Fast

Propagation
Propagation?
For propagating by seed: No treatment.

Natural Setting
Site Type
Site Type
Dry, sandy slopes and desert washes

Climate
Climate
Annual Precipitation: 3.0" - 14.3", Summer Precipitation: 0.37" - 2.65", Coldest Month: 44.8" - 60.0", Hottest Month: 72.3" - 88.9", Humidity: 2.77" - 39.72", Elevation: -70" - 4175"

Alternative Names
Common Names: Coues' Cassia, Coves's Cassia


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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