Overview

Comprehensive Description

Description

Bulb is ovoid or subglobose. The outer tunics are membranous, greyish-black, coriaceous and splitting lengthways. The  leaves are 3-4, 1-5 mm wide, shorter than the inflorescence, filiform to linear, fistulose, sheathing the lower half of the stem. The spathe is 2-valved and persistent. The valves wide at the base, extended into long slender appendages and longer than the umbel. The umbel is usually subglobose and sometimes somewhat fastigiate laxly  to densely-flowered.The pedicels are sub-equal. The perianth narrowly campanulate. Segments are white, usually with a reddish or green mid-vein, oblong or oblanceolate. The anthers sub-exserted. The style exserted. The capsule exsist.

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Distribution

Range Description

A. stearnii is endemic to the south, centre and east of the Iberian Peninsula (Aedo in prep.).
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Global Distribution

Mediterranean Europe, Egypt, Palestine, Syria, Turkey.

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Physical Description

Size

Height: 12-40(-100) cm

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
It is found in herb communities, in arable land and on roadsides (Aedo in prep.).

Systems
  • Terrestrial
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Dry slopes, waste places, roadsides.

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Life History and Behavior

Life Expectancy

Perennial

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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
2011

Assessor/s
Draper, D.

Reviewer/s
Nieto, A. & Kell, S.P.

Contributor/s
Kell, S.P.

Justification

Allium stearnii is assessed as Least Concern because it is relatively widespread in the Iberian Peninsula, is presumed to have a relatively large population size, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.


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Population

Population
It is widespread in Spain and localized in Portugal.

Population Trend
Unknown
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Threats

Major Threats
Changes in land use is the major threat to this species.
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Management

Conservation Actions

Conservation Actions
No germplasm accessions of A. stearnii are reported by EURISCO to be held in European genebanks (EURISCO Catalogue 2010). A review of the ex situ conservation status of this species is required and germplasm collection and duplicated ex situ storage should be carried out as necessary.

It occurs in protected areas.
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