Biology:Delphinium newtonianum
| Delphinium newtonianum | |
|---|---|
| |
| Delphinium newtonianum in bloom | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Ranunculales |
| Family: | Ranunculaceae |
| Genus: | Delphinium |
| Species: | D. newtonianum
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| Binomial name | |
| Delphinium newtonianum Dw.Moore
| |
Delphinium newtonianum is a species of flowering plant in the family Ranunculaceae. It is endemic to the Interior Highlands of Arkansas in the United States.[2]
Description
Delphinium newtonianum is a perennial herb with slender, tuberous, clustered roots and stems that are simple below and loosely branched above, typically reaching 30–130 cm in height.[3] Leaves are deeply divided into three primary lobes, with lower leaves further subdivided into additional lobules.[3]
The inflorescence is an open, spreading cymose panicle. Flowers are typically bright blue but may also be lavender or white, with spreading sepals and a curved or arched spur approximately 2 cm long.[3] The fruits are glabrous, strongly divergent follicles.[3]
Habitat and ecology
The species occurs on forested slopes and in mesic to dry-mesic habitats within the Interior Highlands, including the Boston Mountains and Ouachita Mountains.[4] It grows in temperate forest environments and is associated with upland woodland habitats.[1]
The species flowers from late June to early July.[4]
Distribution
Delphinium newtonianum is endemic to Arkansas, where it occurs in the Interior Highlands region.[4][1] It was originally described from Newton and Pope counties, Arkansas.[3]
Occurrence data compiled by the Global Biodiversity Information Facility (GBIF) include numerous herbarium specimens and verified observations from across its limited range.[5]
Taxonomy
Delphinium newtonianum was described by Dwight M. Moore in 1939 in the journal Rhodora.[6] The type material originates from Arkansas.[6]
Moore noted that the species was highly distinct, particularly in its inflorescence, and suggested it might warrant placement in a separate section of the genus, though he retained it within Delphinium pending further study.[3]
The species is widely accepted by modern taxonomic authorities.[2][5]
Conservation
According to NatureServe, Delphinium newtonianum is ranked G3 (vulnerable), reflecting its restricted range and limited number of occurrences.[1] It is considered secure in parts of its range but remains of conservation concern due to its endemism.[1]
Several populations occur on protected lands, including within the Ozark National Forest.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "Delphinium newtonianum". NatureServe Explorer. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.144915/Delphinium_newtonianum.
- ↑ 2.0 2.1 "Delphinium newtonianum Dw.Moore". Plants of the World Online. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77430-2.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Moore, D.M. (1939). "Delphinium newtonianum, a new species from Arkansas". Rhodora 41: 196.
- ↑ 4.0 4.1 4.2 "Delphinium newtonianum". Flora of the Southeastern United States. https://fsus.ncbg.unc.edu/main.php?pg=show-taxon-detail.php&taxonid=9248.
- ↑ 5.0 5.1 "Delphinium newtonianum D.M.Moore". Global Biodiversity Information Facility. https://www.gbif.org/species/3033780.
- ↑ 6.0 6.1 "Delphinium newtonianum Dw.Moore". International Plant Names Index. https://www.ipni.org/n/77430-2.
Wikidata ☰ Q15372639 entry
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