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Comments ( englanti )

tarjonnut eFloras
Brodiaea filifolia is endangered. It grows on clay soils at the edges of vernal pools and flood plains in southern California. It has been extirpated from Los Angeles and San Bernadino counties and is seriously threatened by development, vehicles, and agriculture in Riverside and San Diego counties. It is in cultivation.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( englanti )

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Scape 20–30 cm, slender. Flowers 14–20 mm; perianth violet-reddish purple, tube narrowly cylindrical, 6–8 mm, transparent, splitting in fruit, lobes widely spreading, 10–14 mm; filaments 0.5–1 mm, base not triangular, with narrow abaxial wings; anthers linear, 3–5 mm, apex widely notched; staminodia inconspicuous, reflexed against perianth, purple, threadlike, 2–4 mm, apex subulate; ovary 4–5 mm; style 6–7 mm; pedicel 1–4 cm. 2n = 24.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Distribution ( englanti )

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Calif.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flowering/Fruiting ( englanti )

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Flowering spring (Apr--May).
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Habitat ( englanti )

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Grasslands, vernal pools; of conservation concern; 0--300m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym ( englanti )

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Hookera filifolia (S. Watson) Greene
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 322, 325 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Brodiaea filifolia ( englanti )

tarjonnut wikipedia EN

Brodiaea filifolia (thread-leaved brodiaea), San Gabriel Valley

Brodiaea filifolia, known by the common name threadleaf brodiaea, is a rare species of flowering plant in the cluster-lily genus . It is endemic to southern California, mostly in the region around the junction of Orange, Riverside, and San Diego Counties.

The bulb is a resident of scattered remaining vernal pool and grassland habitats. It is a federally listed threatened species and it is listed as an endangered species on the state level.

Description

Brodiaea filifolia is a perennial producing an inflorescence 20 to 30 centimeters tall which bears bright purple flowers. Each flower has six spreading tepals 1 to 1.5 centimeters long with a center containing three stamens and narrow or small staminodes, which are flat sterile stamens lying against the tepals.

Conservation

This plant occurs in grassland areas, often in floodplains, and it is a member of the local vernal pool flora.[1] It requires heavy clay soils.[1] This type of habitat is becoming very rare as it is being cleared for development, especially as residential areas expand.[1] Undeveloped land near residential areas is degraded by exotic vegetation, mowing and other fire suppression efforts, sewage dumping, grazing of livestock, off-road vehicle use, and other processes.[1][2]

The plant is also at risk for reduced genetic variability. It often reproduces vegetatively by producing new corms, a method of cloning which does not produce individuals with new combinations of genes.[1] When the plant does reproduce sexually, it requires unrelated individuals which have different genes; it cannot fertilize itself, nor can it successfully reproduce with closely related individuals.[1] Small population sizes that have low genetic diversity and wide distances between populations make it less likely the plant will successfully undergo sexual reproduction.[1][2] The plant sometimes hybridizes with Brodiaea orcuttii.[2]

There are about 68 occurrences remaining in widely spaced locations between the San Gabriel Mountains and west-central San Diego County.[2] Several occurrences have been discovered since the plant joined the endangered species list, including locations on Camp Pendleton, and a few have been extirpated.[2]

References

  1. ^ a b c d e f g The Nature Conservancy
  2. ^ a b c d e USFWS. Five-year Review: B. filifolia. August 13, 2009.

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Brodiaea filifolia: Brief Summary ( englanti )

tarjonnut wikipedia EN
Brodiaea filifolia (thread-leaved brodiaea), San Gabriel Valley

Brodiaea filifolia, known by the common name threadleaf brodiaea, is a rare species of flowering plant in the cluster-lily genus . It is endemic to southern California, mostly in the region around the junction of Orange, Riverside, and San Diego Counties.

The bulb is a resident of scattered remaining vernal pool and grassland habitats. It is a federally listed threatened species and it is listed as an endangered species on the state level.

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