Vascular Plants of North Carolina
Account for Bluestem Prickly-poppy - Argemone albiflora   Hornemann
Members of Papaveraceae:
Members of Argemone with account distribution info or public map:
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Section 6 » Order Papaverales » Family Papaveraceae
AuthorHornemann
DistributionScattered in the southern half of the Coastal Plain, north to Johnston and Pitt counties. Traditionally it has been considered as an exotic species in NC, though Weakley (2018) considers it as native on his map; however, in his text he states "The species is apparently native to the southeastern United States, presumably including portions of our area [Southeastern US], south to s. FL, but the native range is unclear." One of the website editors (Sorrie) has never seen it in NC.

This is a species of the southern Great Plains, perhaps native east to southeastern NC and all of FL.
AbundanceScarce, rare to uncommon. It probably should be on the Watch List, to collect more information about records and habitats. The website editors suggest W4, to indicate that it might or might not be native, but provenance in NC is uncertain. One of the Websuite Editors (Sorrie) has never seen it in NC.
HabitatIn NC, it occurs in sandy, generally disturbed sites, such as sandy roadsides, sandy fields, and vacant lots. These habitats suggest a non-native species, though the distribution suggests perhaps a native one, as records are fairly tight in the southern Coastal Plain.
PhenologyBlooms in April and May, and rarely later; fruits shortly after flowering.
IdentificationThis is an impossible species to overlook owing to its very large flower and prickly look. The herbaceous stem grows to about 1-1.5 feet tall, with some small prickles on it. The handful of scattered alternate leaves are elliptic to obovate in general shape, and about 4-5 inches long and 2 inches wide, somewhat cut and strongly prickly, with jagged margins. The stem and any branches are topped by a very large flower, with 4-6 white petals that are squared-off at the apex, and the spread flower is about 3 inches across. The numerous yellow stamens create a distinctive yellow center to the flower.
Taxonomic CommentsWeakley (2018) considers that the taxon in the Southeast is the nominate one -- var. albiflora. Older references named the species as Argemone alba.

Other Common Name(s)White Prickly-poppy
State RankSE? [S2?]
Global RankG4G5
State Status[W4]
US Status
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USACE-emp
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