| Trifolium angustifolium | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Trifolium |
| Species: | T. angustifolium |
| Binomial name | |
| Trifolium angustifolium | |
Trifolium angustifolium is a species of clover known by the common names narrowleaf crimson clover, [2] narrow clover [3] and narrow-leaved clover.
It is native to Europe, Asia, and North Africa. Trifolium angustifolium occurs in many types of habitat, including disturbed areas.
It can be found elsewhere as an introduced species, including an invasive species in parts of North America, such as California.
Trifolium angustifolium is an annual herb growing erect in form. The leaves are divided into narrow leaflets which are linear to lance-shaped and measure up to 4.5 centimeters long. The leaves have stipules tipped with bristles. The herbage is hairy in texture.
The inflorescence is a cylindrical spike of flowers measuring 1 to 5 centimeters long. Each flower has a calyx of sepals with long, hairy, needle-like lobes that harden into bristles as the plant dries. Within each calyx is a pink corolla about a centimeter long.
Trifolium pratense, red clover, is a herbaceous species of flowering plant in the bean family Fabaceae, native to Europe, Western Asia, and northwest Africa, but planted and naturalized in many other regions.
Trifolium albopurpureum is a species of clover known by the common name rancheria clover.
Trifolium andersonii is a species of clover known by the common names fiveleaf clover and Anderson's clover. It is native to the western United States, particularly the Great Basin and adjacent high mountain ranges, including the Sierra Nevada. It was named after Charles Lewis Anderson by Asa Gray.
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 buckwestiorum is a rare species of clover known by the common name Santa Cruz 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 eriocephalum is a species of clover known by the common name woollyhead clover or hairy head clover.
Trifolium fragiferum, the strawberry clover, is a herbaceous perennial plant species in the bean family Fabaceae. It is native to Europe, Asia, and parts of Africa. It is present in other places, such as sections of North America, as an introduced species. It is also cultivated as a cover crop and for hay and silage, as green manure, and as a bee plant.
Trifolium glomeratum is a species of clover known by the common names clustered clover and bush clover. It is native to Eurasia and North Africa and it is known elsewhere as an introduced species. It easily takes hold in disturbed areas, becoming a common weed. It is an annual herb growing decumbent to upright in form with mostly hairless herbage. The leaves are made up of oval leaflets up to 1.2 centimeters in length. The inflorescences occur in leaf axils, each a headlike cluster of many flowers. Each flower has a calyx of sepals with triangular points that bend outward, and a pink corolla.
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, commonly known as rose clover, is a species of flowering plant in the legume family Fabaceae. It is indigenous to a range of regions spanning Europe, Western Asia, and North Africa, and has been introduced to other parts of the world where it is cultivated for various purposes.
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 macrocephalum is a species of clover known by the common name largehead clover or bighead clover native to the Great Basin region of the western United States.
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 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.
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