Species Identification

Interested in the identification of penstemons? Please select a species then click on submit:

AttributeThe current selection is Penstemon_secundiflorus
ClassificationPenstemon Penstemon Coerulei
GeneralOne-sided or Side Bells Penstemon Blooms: late April to June.
AntherWidely spreading, opening narrowly.
StaminodeDilated, heavily yellow bearded its length, often only on edges, recurved.
LeavesDark to waxy grey-green, stem leaves 75 mm (2 7/8) long & 1/5-1/7 as wide or varying to broader, 2/3-1/2 as wide, often erect, lanceolate to oblanceolate with pointed tips, basal rosette leaves 8 cm (3) long &1/3 as wide, obovate to spatulate, stemmed and blunt.
Stems15-50 cm (6-20) tall, herbage smooth and waxy.
Inflorescense3-10 closely spaced, but not crowded verticillasters.
Corolla17-25 mm (5/8-1) long, color variable to medium blue, violet, red-violet, lilac or pink or turquoise, or rarely white. Gradually expanded, lips spread from a flat-planed tube, hairs on lower lip, guidelines sometimes visible on upper lobes, but obscured or not present on lower ones.
Flower Color
Calyx4-7 mm (to ) long, sepals sharp at tips with papery edges.
HabitatStratified gravelly and sandy soils, foothills and lower elevations, 1650-2750 m (5400-9000) elev.
RangeEast side of Rocky Mts., from se Wy to ne NM.