Species Identification

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

AttributeThe current selection is Penstemon_serrulatus
ClassificationPenstemon Saccanthera Saccanthera Serrulati
GeneralCascade or Coast Penstemon. This penstemon occurs in wetter habitats with winter rains than most species, but still requires moderately good soil drainage, even in places that dry out by late summer. The name serrulatus refers to the finely serrate leaf margins. Blooms: June to early August.
AntherSmooth, opening about length, expanded and flattened at the tip and expanding slightly out of corolla.
Leaves2-9 cm (3/4-3 ) long, and all attached to the blooming stem on short petioles below, with shorter or none or clasping above, almost entire to markedly serrate, the blades broadly lanceolate or elliptic to heart-shaped.
Stems2-7 dm (8-28) high, with several rising in a clump from a woody base, glabrous at the base, but often minutely pubescent (fuzzy) above.
InflorescenseMost commonly as a single, globular thyrse at the apex to as many as 5 well-spaced vertillasters in clusters down the stem, if present.
Corolla1.6-2.5 cm (5/8-1) long, deep blue to purple rarely white, smooth throughout or with a sparse beard on the palate.
Flower Color
Calyx5-11 mm (to 3/8) long, the sepals narrow to ovate, the margins very finely ciliolate.
HabitatMoist ground in the spring in forest openings to wooded slopes from sea level to 6000 elevation.
RangeSouthern Alaska and sw British Columbia to western WA and nw OR, w of the Cascade Crest.