Hoary Cress

Lepidium draba L.

2011 Barry Rice cc-by-nc-sa-3.0

Lepidium draba (Hoary Cress) is a species of perennial herb in the family crucifers. They have a self-supporting growth form. They are native to Western North America. They have simple, broad leaves. Flowers are visited by Andrena labiata, common blue, Heringia heringi, and Clanoptilus geniculatus. Individuals can grow to 0.56 m.

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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URI: http://purl.obolibrary.org/obo/FLOPO_0022142
Definition: whole plant herbaceous

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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: https://eol.org/schema/terms/western_north_america
Definition: From the Pacific to central North America. May include Saskatchewan, Texas, and/or Guanajuato

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URI: http://purl.obolibrary.org/obo/PO_0020042
Definition: A leaf in which the lamina is undivided

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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.

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EOL has data for 26 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. Not exclusive; other regions may also be reported.
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Austria
- URI: http://www.geonames.org/2782113
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invasive in
- URI: http://eol.org/schema/terms/InvasiveRange
- Definition: Information about the jurisdictions where the taxon is considered to be an invasive organism due to its negative impact on human welfare or ecosystems.
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United States
- URI: http://www.geonames.org/6252001
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Leaf Complexity
- URI: http://purl.obolibrary.org/obo/FLOPO_0007484
- Definition: whether a leaf is intricate or compounded
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simple
- URI: http://purl.obolibrary.org/obo/PO_0020042
- Definition: A leaf in which the lamina is undivided
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leaf morphology
- URI: http://purl.obolibrary.org/obo/FLOPO_0019932
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broad
- 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.
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leaf sheddability
- URI: http://purl.obolibrary.org/obo/FLOPO_0008548
- Definition: A plant's disposition to lose leaves by a natural process
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deciduous
- URI: http://purl.obolibrary.org/obo/PATO_0001731
- Definition: Deciduous (plant): A quality inhering in a plant by virtue of the bearer's disposition to shed foliage.
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native range includes
- URI: http://eol.org/schema/terms/NativeRange
- Definition: Lists jurisdictions in which a given organism is a member of the undisturbed fauna or flora.
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Western North America
- URI: https://eol.org/schema/terms/western_north_america
- Definition: From the Pacific to central North America. May include Saskatchewan, Texas, and/or Guanajuato
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photosynthetic pathway
- URI: http://eol.org/schema/terms/photosyntheticPathway
- Definition: the biochemical pathway a plant uses to gain carbon for growth and reproduction. Plants have evolved three photosynthetic pathways, each in response to distinct environmental conditions, resulting in differences in their ecological patterns of growth and distribution.
- Comment: https://www.nature.com/scitable/knowledge/library/the-ecology-of-photosynthetic-pathways-15785165
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c3 photosynthetic plant
- URI: https://www.wikidata.org/entity/Q286954
- Definition: one of three metabolic pathways for carbon fixation in photosynthesis, along with C4 and CAM. This process converts carbon dioxide and ribulose bisphosphate (RuBP, a 5-carbon sugar) into 3-phosphoglycerate through the following reaction:\r\n\r\nCO2 + H2O + RuBP → (2) 3-phosphoglycerate\r\n\r\nThis reaction occurs in all plants as the first step of the Calvin–Benson cycle.
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plant lifeform
- URI: http://purl.obolibrary.org/obo/FLOPO_0900022
- Definition: whole plant lifeform
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terrestrial plant
- URI: http://eol.org/schema/terms/terrestrialPlant
- Definition: A terrestrial plant is a plant that grows on or in or from land. Other types of plants are aquatic (living in water), epiphytic (living on trees) and lithophytic (living in or on rocks)
- Attribution: https://en.wikipedia.org/wiki/Terrestrial_plant
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post-fire seedling emergence
- URI: http://eol.org/schema/terms/PostFireSeedlingEmergence
- Definition: Seedling density per pre-fire mature individuals emerging during the first year after fire (seedlings/mature).
- Attribution: BROT trait database. Traits: units and categories (SeedlEmerg), http://www.uv.es/jgpausas/brot.htm
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none
- URI: http://purl.bioontology.org/ontology/SNOMEDCT/260413007
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resprout ability after fire
- URI: http://eol.org/schema/terms/RespFire
- Definition: Resprouting ability one year after being ca. 100% scorched or burned by fire.
- Attribution: BROT trait database. Traits: units and categories (RespFire), http://www.uv.es/jgpausas/brot.htm;
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none
- URI: http://purl.bioontology.org/ontology/SNOMEDCT/260413007
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trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
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photoautotroph
- URI: http://purl.obolibrary.org/obo/ECOCORE_00000130
- Definition: An autotroph which is capable of transforming light into chemical energy.
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type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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HBG

Known occurrences, collected specimens and observations of hoary cress. View this species on GBIF

2011 Barry Rice cc-by-nc-sa-3.0