| Trifolium buckwestiorum | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Trifolium |
| Species: | T. buckwestiorum |
| Binomial name | |
| Trifolium buckwestiorum Isely | |
Trifolium buckwestiorum is a rare species of clover known by the common name Santa Cruz clover. [2]
It is endemic to California, where it is known from nine or ten small occurrences in Monterey, Santa Cruz, and Sonoma Counties. [3] It may also occur in San Mateo, Santa Clara, and Mendocino Counties, [4] but its populations are very small and easily disturbed by threats such as vehicles, development, and feral pig activity. [3]
It grows in forest, woodland, and coastal prairie habitat. [5]
It is an annual herb growing upright or decumbent in form, with hairless green or reddish herbage. The leaves are made up of finely toothed, oval shaped leaflets up to 1.5 centimeters long and bristle-tipped stipules.
The inflorescence is a head of flowers roughly a centimeter wide, the flowers held in a bowl-like involucre of wide, jagged-toothed bracts. Each flower has a calyx of sepals that narrow into fine bristles and a pink corolla under one centimeter long.
Trifolium wormskioldii is a species of clover. Its common names include cows clover, coast clover, sand clover, seaside clover, springbank clover, and Wormskjold's clover.
Erysimum teretifolium is a species of Erysimum known by the common names Santa Cruz wallflower and Ben Lomond wallflower. It is a very rare plant endemic to Santa Cruz County, California, where it grows on inland sand spits, chaparral, and sandstone deposits in the southern Santa Cruz Mountains. It is a California state and federally listed endangered species.
Arctostaphylos pajaroensis is a species of manzanita known by the common name Pajaro manzanita. It is endemic to California, where it is known mainly from Monterey County.
Trifolium albopurpureum is a species of clover known by the common name rancheria clover.
Trifolium angustifolium is a species of clover known by the common names narrowleaf crimson clover, narrow clover and narrow-leaved clover.
Trifolium barbigerum is a species of clover known by the common name bearded clover.
Trifolium bifidum is a species of clover known by the common names notchleaf clover and pinole clover. It is native to the western United States from Washington to California, where it grows in many types of habitat. It is an annual herb spreading or growing erect in form. It is lightly hairy to hairless in texture. The leaves are made up of oval leaflets 1 to 2 centimeters long, usually with notches in the tips. The inflorescence is a head of flowers up to 1.5 centimeters wide. Each flower has a calyx of sepals that narrow to bristles covered in long hairs. The flower corolla is yellowish, pinkish, or purple and under a centimeter long. The flowers droop on the head as they age.
Trifolium bolanderi is a species of clover known by the common names Bolander's clover and parasol clover.
Trifolium ciliolatum is a species of clover known by the common name foothill clover. It is native to western North America from Washington to Baja California.
Trifolium depauperatum is a species of clover known by the common names cowbag clover, poverty clover, and balloon sack clover.
Trifolium fucatum is a species of clover known by the common names bull clover and sour clover. It is native to the western United States, where it grows in many types of habitat, becoming common to abundant in some areas. It is an edible species of clover.
Trifolium gracilentum is a species of clover known by the common names pinpoint clover and slender clover. It is native to western North America including the west coast of the United States and northwestern Mexico, where it grows in many types of habitat, including disturbed areas. It is an annual herb growing prostrate to erect in form with mostly hairless or slightly hairy herbage. The leaves are made up of lance-shaped to oval leaflets. The inflorescence is an umbel of flowers that spread out or flex downward. The flowers have pink or purple corollas less than a centimeter long.
Trifolium hirtum is a species of clover known by the common name rose clover. It is native to Europe, Western Asia, and North Africa. It is present elsewhere as an introduced species and it is cultivated as a cover crop and animal fodder. It was introduced to California from Turkey in the 1940s as a forage crop, and today it is a widespread roadside weed there.
Trifolium lemmonii is a species of clover known by the common name Lemmon's clover.
Trifolium macraei is a species of clover known by the common names Chilean clover, double-head clover, and MacRae's clover. It has a disjunct distribution, occurring on the coastline of Oregon and California in the United States, as well as in South America. It grows in coastal habitat, such as sand dunes, and disturbed areas. It is an annual herb taking a decumbent or erect form. The leaves are made up of oval leaflets 1 to 2 centimeters in length. The inflorescence is usually made up of two oval or rounded heads of flowers each measuring up to 1.5 centimeters wide. Each flower has a calyx of sepals which taper into densely hairy bristles. The flower corolla is purple or bicolored with white or pink.
Trifolium microcephalum is a species of clover known by the common names smallhead clover and small-headed clover.
Trifolium obtusiflorum is a species of clover known by the common name clammy clover. It is native to California in the Peninsular, Transverse, Sierra Nevada, and the California Coast Ranges and Cascade Range into southwestern Oregon.
Trifolium oliganthum is a species of clover known by the common name fewflower clover. It is native to western coastal and montane North America from British Columbia to California, the Sierra Nevada, and to Baja California, where it occurs in many types of habitat.
Trifolium variegatum is a species of clover known by the common name whitetip clover. It is native to western North America from southern Alaska and British Columbia to Baja California, where it occurs in many types of habitat.
Trifolium jokerstii is a rare species of clover known by the common names Jim's clover and Butte County golden clover. It is endemic to Butte County, California, where it is known from eight or nine occurrences near Oroville. It grows in seasonally moist habitat, such as vernal pools, pastures, and ephemeral creeks. It was previously included within the description of Trifolium barbigerum as an odd yellow-flowered variant of a mostly purple-pink-flowered species, and was elevated to species status in 1998. It was named for the California botanist Jim Jokerst.
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