The following Participating Institutions are custodians for this species in the CPC National Collection:
Mercer Arboretum and Botanic Gardens
The conservation of Physostegia longisepala is fully sponsored.
Dave Berkshire contributed to this Plant Profile.
Erect, rhizomatous perennial to 3 feet tall, stem squarish, with 9-15 nodes below inflorescence; primary rhizome branching to produce one to many elongate horizontal secondary rhizomes. Leaves opposite and simple, lower ones with petioles and upper ones sessile, mostly clasping the stem, 2-5" long, 1/5-3/4" wide with or without teeth. Flowers in 1-7, terminal, bracted racemes, tubular, to 1 1/4" long with five lobes, deep lavender to to reddish-violet, spotted or streaked with purple. Flowering early May to early July.
Distribution & Occurrence
Relatively open areas on poorly drained, acid loams on level terrain. Probably originally found in fire-maintained wetland pine savannas or in the transition zone between such flatwoods and adjacent coastal prairies; now found primarily in secondary habitats such as wet barrow ditches along roadsides and moist areas in human-made clearings in pine woodlands.
|> 40 known populations|
Conservation, Ecology & Research
Poole, J.M.; Carr, W.R.; Price, D.M.; Singhurst, J.R. 2007. Rare Plants of Texas. College Station, TX. Texas A&M University Press. 640p.