Biology:Physaria ludoviciana
| Physaria ludoviciana | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Physaria |
| Species: | P. ludoviciana
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| Binomial name | |
| Physaria ludoviciana (Nutt.) O'Kane & Al-Shehbaz
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| Synonyms[1] | |
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List
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Physaria ludoviciana is a species of flowering plant in the mustard family Brassicaceae, with the common names of bladder pod, silver bladderpod,[2] louisiana bladderpod, and foothill bladderpod.[3] It used to be Lesquerella ludoviciana which is now a synonym.[1]
Description
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Physaria ludoviciana is a taprooted perennial, growing 6-16 inches tall.[4] The flowers have four sepals and four yellow petals and six stamens.[5] The leaves are simple, narrow, and covered with stellate-pilose hairs. The basal leaves are produced in a rosette. The two loculed fruits are a globe-like silicle with dense pilose hairs.[5] Flowering occurs in early spring to mid/late summer, and some plants are polyploids.[6]
Distribution and habitat
It is an endangered species in Illinois and Minnesota, and a threatened species in Wisconsin.[4] In all three states this species is outside of its main range which is more western, growing in the dry plains.[5] The Minnesota populations are found around Red Wing in Goodhue County;[6] they are 500 kilometers from the species main range in the west and it is speculated it was introduction there by the long-range dispersal of a single seed or they are remnants from when the environment was drier and the species had a greater natural range.[5] The Minnesota plants are found in dry prairie on south-facing bluffs in sandy soil originating from weathered limestone; the populations are threatened by the encroachment of woody and invasive species due to human suppression of fires.[5]
Physaria ludoviciana is avoided by grazing animals.[6]
References
- ↑ 1.0 1.1 "Physaria ludoviciana (Nutt.) O'Kane & Al-Shehbaz | Plants of the World Online | Kew Science" (in en). http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:1151078-2.
- ↑ "Threatened Search Results | USDA PLANTS". https://plants.usda.gov/java/threat?stateSelect=US55&statelist=states.
- ↑ Gardens, Denver Botanic (2018-08-21) (in en). Wildflowers of the Rocky Mountain Region. Timber Press. ISBN 978-1-60469-869-5. https://books.google.com/books?id=VZQ0DwAAQBAJ&pg=PA366.
- ↑ 4.0 4.1 "Physaria ludoviciana (Bladderpod): Minnesota Wildflowers" (in en). https://www.minnesotawildflowers.info/flower/bladderpod.
- ↑ 5.0 5.1 5.2 5.3 5.4 Barbara Coffin; Lee Pfannmuller (1988). Minnesota's Endangered Flora and Fauna. U of Minnesota Press. p. 106. ISBN 978-0-8166-1689-3. https://books.google.com/books?id=wfWNq91AjeoC.
- ↑ 6.0 6.1 6.2 "Physaria ludoviciana : Bladderpod | Rare Species Guide" (in en). https://www.dnr.state.mn.us/rsg/profile.html?action=elementDetail&selectedElement=PDBRA1N110.
Wikidata ☰ Q17247672 entry
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