Linum floridanum

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Linum floridanum
Linu flori.jpg
Photo by Wayne Matchett,
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Linales
Family: Linaceae
Genus: Linum
Species: L. floridanum
Binomial name
Linum floridanum
(Planch.) Trel.
LINU FLOR dist.jpg
Natural range of Linum floridanum from USDA NRCS Plants Database.

Common name: Florida yellow flax, yellow-fruited yellow flax[1]

Taxonomic notes

Synonyms: none[1]

Varieties: Linum floridanum (Planchon) Trelease var. chrysocarpum; Linum floridanum (Planchon) Trelease var. floridanum; Cathartolinum macrosepalum Small[1]


"Annual, biennial, or short-lived perennial herbs with 1-several strict stems from a crown, usually branched above. Leaves cauline, opposite or alternate, entire, acute to acuminate, sessile, exstipulate. Inflorescence a panicle of racemes or cymes. Flower perfect, actinomorphic, pedicellate; sepals 5, separate or basally adnate; pistil 5-carpellate, styles 5, each carpel divided at maturity, the pistil then appearing 10-carpellate. Seeds lustrous brown, obovoid to ellipsoid."[2]

"Perennial with 1-several stems 3-8 dm tall, from a crown. Leaves mostly alternate, lowest often opposite, narrowly elliptic to linear, 0.8-2.5 cm long, 1-7 mm wide, acute. Pedicels 1-3 mm long. Sepals lanceolate, 2-3 mm long, acute to acuminate, entire or glandular serrate; petals yellow, 4-8 mm long. Capsule ovoid or oblate, 1.3-3 mm long. Seeds 1-1.3 mm long."[2]

"Leaves 0.8-5 mm wide. Branches of inflorescence ascending. Inner sepals are densely glandular serrulate. Capsule ovoid, 2-3 mm long."[2]


L. floridanum var. chrysocarpum ranges from southeast North Carolina, south to southern Florida, and west to southern Mississippi. L. floridanum var. floridanum has a similar range, except it is additionally located in Lousiana and the West Indies.[1]



This species can be found in open wiregrass seepage savannas, longleaf pine forests, and disturbed areas such as ditches.[3] The soils have been observed to be moist and/or dry loamy sands within well-drained uplands.[3] Associated species include Pinus palutris, Aristida stricta, Sarracenia, and Harperocallis.[3]


L. floridanum flowers from June through October.[1]

Seed dispersal

This species is thought to be dispersed by gravity.[4]

Fire ecology

This species occurs in areas that are annually burned.[3] In an open wet pine savanna in Mississippi, the highest densities of flowering stalks for L. floridanum were observed one year after fire.[5]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 1.4 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. 2.0 2.1 2.2 Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 645-6. Print.
  3. 3.0 3.1 3.2 3.3 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: June 2014. Collectors: Loran C. Anderson, M. Davis, Robert K. Godfrey, R. Komarek, Cecil R. Slaughter. States and Counties: Florida: Baker, Liberty, and Wakulla. Georgia: Thomas.
  4. Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
  5. Hinman, S. E. and J. S. Brewer (2007). "Responses of two frequently-burned wet pine savannas to an extended period without fire." Journal of the Torrey Botanical Society 134: 512-526.