Trifolium willdenovii, Tomcat Clover
Common Name: Tomcat Clover
Also Called: Sand Clover, Springbank Clover
Family: Fabaceae or Leguminosae Family
Synonyms: (Trifolium tridentatum, Trifolium tridentatum var. aciculare, Trifolium tridentatum var. clivorum, Trifolium willdenowii)
Size: Up to 8 inches (20 cm) more or less.
Growth Form: Forb/herb; stems erect, or spreading, more slender and smaller in southern areas, more robust in northern climates with increased moisture, glabrous.
Leaves: Green; compound, leaflets mostly linear, toothed.
Flower Color: Purple, purple-pink; inflorescence head-like flowers, small but showy, fruit a legume, 1 or 2 seeds.
Flowering Season: April to June, blooms earlier (April) in the southern part of the state, May to June in California.
Elevation: Below 5,000 feet (1524 m)
Habitat Preferences: More common in northern elevations, disturbed areas with moisture, heavy soils.
Recorded Range: In North America, Tomcat Clover is found in the west, primarily the coastal states and in Arizona and Idaho; AZ, CA, ID, OR, TX, WA and British Columbia, Canada. In Arizona it is found in the central and southern parts of the state. They are also native to Baja California, Mexico and south to South America.
North America & US County Distribution Map for Trifolium willdenovii.
U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Threatened/Endangered Information: No information available.
Wetland Indicator: In North America Trifolium willdenovii has the following wetland designations;
Arid West, FACW; Western Mountains, Valleys and Coast, FACU
FACW, Facultative Wetland, usually occur in wetlands, but may occur in non-wetlands
FACU, Facultative Upland, usually occur in non-wetlands, but may occur in wetlands.
In the Southwestern United States: Arizona has 20 species of Trifolium genus, California has 60 species, Nevada has 21 species, New Mexico has 19 species, Texas has 15 species, Utah has 18 species. All data approximate and subject to revision.
Comments: The photo above was taken April 06, 2011 (about 3,500 feet (1066 m)) near Sycamore Creek west of Mount Ord, Tonto National Forest, Arizona.In Southwest Desert Flora also see Pinpoint Clover, Trifolium gracilentum.
The species epithet willdenovii is named in honor of Carl Ludwig Willdenow (1765-1812) eminent German botanist and taxonomist.