Overview

Distribution

Range Description

Species widespread from southern United States (Arizona) through central America to western South America.
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National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Physical Description

Morphology

Physical Description

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems prostrate, trailing, or mat forming, Stems less than 1 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Leaves alternate , Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules persistent, Stipules clasping stem at the base, Stipules adnate to petiole, Leaves compound, Leaves palmately 2-3 foliate, Leaflets dentate or denticulate, Leaflets 3, Leaves glabrous or nearly so, Inflorescences racemes, Inflorescence umbel-like or subumbellate, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Inflorescence terminal, Bracteoles present, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, Petals pinkish to rose, Banner petal narrow or oblanceolate, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Fruit a legume, Fruit unilocular, Fruit indehiscent, Fruit oblong or ellipsoidal, Fruit or valves persistent on stem, Fruit enclosed in calyx, Fruit glabrous or glabrate, Fruit 2-seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black, Seed surface mottled or patchy.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Trifolium amabile is a perennial non-climbing herb which occurs in montane forests. Reported as common in moist sandy soil, it grows in mountain areas at high elevation, road shoulders and open forest.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Lopez Poveda, L.

Reviewer/s
Hilton-Taylor, C.

Contributor/s

Justification
Trifolium amabile is listed as Least Concern. The species has a wide distribution across tropical South America. The population is believed to be stable and there are no real threats at present.
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National NatureServe Conservation Status

United States

Rounded National Status Rank: N1 - Critically Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

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Population

Population
The population size of this species is not known. Reported to be common and frequent.

Population Trend
Stable
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Threats

Major Threats
There are no known major threats to this species.
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Management

Conservation Actions

Conservation Actions
There are many protected areas across the extent of the range. Generally, specimen collections have not been reported from protected areas, although there are specimens collected in Podocarpus National Park in Ecuador, Iztaccihuatl-Popocatepetl and Nevado de Toluca National Parks in Mexico and White Canyon in Arizona, designated as Wilderness Area and as Area of Critical Enviromental Concern. Seeds have been collected as part of the Millennium Seed Bank project and by United States National Plant Germplasm System Collection. It is not known to occur in any Botanical Garden.
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