Penstemon triflorus var. triflorus

IllustratedEndemic
Synonyms: Penstemon helleri Small
Treatment appears in FNA Volume 17. Treatment on page 143. Mentioned on page 139.

Cauline leaves: blade ovate to lanceolate, margins sharply serrate. Flowers: calyx lobes 8–13 × 3–4.8 mm; corolla 30–35 mm.


Phenology: Flowering Mar–Jun(–Jul).
Habitat: Limestone prairies and bluffs.
Elevation: 200–600 m.

Discussion

Variety triflorus has been documented in Bandera, Bexar, Brown, Burnet, Coleman, Gillespie, Hays, Kendall, Kerr, Real, Runnels, Schleicher, Sutton, and Uvalde counties. Plants with white or pale pink corollas, relatively short peduncles and pedicels, more continuous inflorescences, and broader leaf bases have been called Penstemon helleri.

Selected References

None.

Lower Taxa

None.