Linum floridanum var. floridanum

Common names: Florida yellow flax
Synonyms: Cathartolinum macrosepalum Small
Treatment appears in FNA Volume 12. Treatment on page 383.

Flowers: anthers 0.5–1.2 mm. Capsules pyriform, 2–3 mm, walls relatively thin, apex obtuse. Seeds 1.6–2.1 mm. 2n = 36.

Phenology: Flowering Jun–Oct.
Habitat: Open pine and pine-palmetto woodlands, pine savannas, sandhill seeps.
Elevation: 0–150 m.


V12 709-distribution-map.jpg

Ala., D.C., Fla., Ga., La., Miss., N.C., S.C., Tex., West Indies (Jamaica).


According to C. M. Rogers (1984), var. floridanum can be distinguished from Linum intercursum by its completely developed false septa that lack cilia and by its more numerous leaves. It can be distinguished from L. medium var. texanum (often misidentified as L. floridanum) by its pyriform capsule. Rogers noted that L. floridanum has subspheric, multiporate pollen, whereas L. medium var. texanum has subtriangular, tricolpate pollen. The records from the District of Columbia and Texas require confirmation; the species is otherwise not known from north of North Carolina or west of central Louisiana (B. A. Sorrie, pers. comm.).

Selected References


Lower Taxa

Nancy R. Morin +
(Planchon) Trelease +
Linum virginianum var. floridanum +
Florida yellow flax +
Ala. +, D.C. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tex. +  and West Indies (Jamaica). +
0–150 m. +
Open pine and pine-palmetto woodlands, pine savannas, sandhill seeps. +
Flowering Jun–Oct. +
Trans. Acad. Sci. St. Louis +
Cathartolinum macrosepalum +
Linum floridanum var. floridanum +
Linum floridanum +
variety +