Pigeonpea

Cajanus cajan (L.) Millsp.

Andres Hernandez S. cc-by-nc-sa

Cajanus cajan (Pigeonpea) is a species of shrub in the family Fabaceae. It has a self-supporting growth form. It has compound, broad leaves and yellow flowers. Flowers are visited by Leaf-cutter and Resin Bees. Pigeonpea fixes nitrogen. It is a photoautotroph.

URI: http://purl.obolibrary.org/obo/FLOPO_0900034
Definition: whole plant frutescent, bush, shrub

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URI: http://eol.org/schema/terms/self-supportingGrowthForm
Definition: an organism relying on its own supportive tissues rather than a climbing habit to achieve vertical growth

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URI: http://purl.obolibrary.org/obo/PO_0020043
Definition: A leaf having two or more distinct leaflets that are evident as such from early in development

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URI: http://purl.obolibrary.org/obo/PATO_0002359
Definition: A quality inhering in a bearer by virtue of the bearer's width being notably higher than its length.
Attribution: [database_cross_reference: PATOC:GVG]

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URI: http://purl.obolibrary.org/obo/PATO_0000324
Definition: A color hue with medium wavelength of that portion of the visible spectrum lying between orange and green, evoked in the human observer by radiant energy with wavelengths of approximately 570 to 590 nanometers.
Attribution: [database_cross_reference: Dictionary:http://dictionary.reference.com/]

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URI: https://eol.org/schema/terms/fixes
Definition: Captures an element from the air and incorporates it into its biochemistry

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URI: http://purl.obolibrary.org/obo/CHEBI_25555

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URI: http://purl.obolibrary.org/obo/ECOCORE_00000130
Definition: An autotroph which is capable of transforming light into chemical energy.

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EOL has data for 80 attributes, including:

geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region
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Maryland
- URI: http://www.geonames.org/4361885
- Definition: State in the USA https://en.wikipedia.org/wiki/Maryland
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life cycle habit
- URI: http://purl.obolibrary.org/obo/TO_0002725
- Definition: Determined for type of life cycle being annual, binneal, perennial etc.
- Comment: The life cycle habit indicates the typical duration of an individual plant's life. Common values are annual, biennial, and perennial. Some plants have different durations depending on environment or location, so a plant can have more than one value.
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perennial
- URI: http://purl.obolibrary.org/obo/FLOPO_0980073
- Definition: Of plant duration, a plant whose life span extends over more than two growing seasons, c.f. annual, biennial, ephemeral, of flowering with respect to architecture, hapaxanthic, monocarpic, pleonanthic
- Attribution: Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 12, July 2012. Glossary: http://www.mobot.org/mobot/research/apweb/top/glossaryi_p.html#perennial
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low temperature tolerance
- URI: http://eol.org/schema/terms/TemperatureTolerance
- Definition: The minimum tolerable temperature is the lowest temperature recorded in the plant’s historical range. If this is not available, the record low January temperature recorded at climate stations within the current geographical range of the plant is used. This definition does not apply to summer annuals.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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31 degrees Fahrenheit
plant growth form
- URI: http://purl.obolibrary.org/obo/FLOPO_0900032
- Definition: whole plant growth form. eg: herbaceous, tree, liana
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shrub
- URI: http://purl.obolibrary.org/obo/FLOPO_0900034
- Definition: whole plant frutescent, bush, shrub
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salt tolerance
- URI: http://purl.obolibrary.org/obo/TO_0006001
- Definition: Tolerance to the high salt content in the growth medium.
- Comment: In the USDA PLANTS database, tolerance to a soil salinity level is defined as only a slight reduction (not greater than 10%) in plant growth.
- Attribution: [database_cross_reference: GR:pj]
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medium (normal)
- URI: http://purl.obolibrary.org/obo/PATO_0000461
- Definition: Average. A quality inhering in a bearer by virtue of the bearer's exhibiting no deviation from normal or average.
- Attribution: [database_cross_reference: PATOC:GVG]
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seed period begin
- URI: http://eol.org/schema/terms/SeedPeriodBegin
- Definition: Season in which the earliest fruit or seed of the fruit/seed period is visually obvious.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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year round
- URI: http://eol.org/schema/terms/yearRound
- Definition: An activity or period that continues throughout the entire year.
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seed period end
- URI: http://eol.org/schema/terms/SeedPeriodEnd
- Definition: Season in which the latest fruit or seed of the fruit/seed period is visually obvious.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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year round
- URI: http://eol.org/schema/terms/yearRound
- Definition: An activity or period that continues throughout the entire year.
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seed spread rate
- URI: http://eol.org/schema/terms/SeedSpreadRate
- Definition: The capability of the plant to spread through its seed production compared to other species with the same growth habit.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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moderate
- URI: http://eol.org/schema/terms/moderateRate
- Definition: Moderate rate. A rate which is neither relatively high nor low.
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seedling survival
- URI: http://eol.org/schema/terms/SeedlingSurvival
- Definition: The expected seedling survival percentage of the plant compared to other species with the same growth habit.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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medium
- URI: http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C49507
- Definition: Mid-way between small and large in number, quantity, magnitude or extent.
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seeds per pound
- URI: http://eol.org/schema/terms/SeedPerPound
- Definition: The number of seeds per pound in an average seed lot.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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8000
shade tolerance
- URI: http://eol.org/schema/terms/ShadeTolerance
- Definition: The relative tolerance of the plant to shade conditions
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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medium (normal)
- URI: http://purl.obolibrary.org/obo/PATO_0000461
- Definition: Average. A quality inhering in a bearer by virtue of the bearer's exhibiting no deviation from normal or average.
- Attribution: [database_cross_reference: PATOC:GVG]
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vegetative spread rate
- URI: http://eol.org/schema/terms/VegetativeSpreadRate
- Definition: The rate at which this plant can spread compared to other species with the same growth habit.
- Attribution: USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
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none
- URI: http://purl.bioontology.org/ontology/SNOMEDCT/260413007
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Known occurrences, collected specimens and observations of pigeonpea. View this species on GBIF

Andres Hernandez S. cc-by-nc-sa

pigeonpea includes 2 children: