General: Perennial herb from a taproot and stout rhizome or branched base; stems several, erect or ascending, glabrous or hairy, 0.2-1.5 m tall.
Leaves: Basal leaves long-stalked and more or less heart-shaped; stem leaves numerous, well-developed, mostly short-stalked, lanceolate to broadly egg-shaped with abruptly sharp-pointed tips, 3-15 cm long, 1-7 cm wide, becoming smaller and unstalked upward, with short, straight, appressed- or stiff-spreading hairs; entire, alternate.
Flowers: Few to many in generally branched, compact to open terminal clusters, or with some solitary in leaf axils; corollas tubular bell-shaped, blue to pink (pink in bud), 9-19 mm long; petals fused below into a tube 5-8 mm long, flaring at top to bell-shaped limb (a bit longer than the tube) and 5 short lobes, with 5 bulges at the throat.
Fruits: Nutlets 4, clustered together, 2.5-5 mm long, wrinkled.
Notes: Two varieties occur in BC:
1. Leaves straight appressed-hairy to spreading coarse-hairy on both surfaces; calyces hairy; plants infrequent to frequent throughout BC........................ var. paniculata
1. Leaves glabrous above; calyces glabrous; plants rare, known only from extreme SE BC.......................... var. borealis (J.F. Macbr.) L.O. Williams
Wet to mesic meadows, streambanks and open forests in the montane, subalpine and alpine zones; frequent in N BC, infrequent southward; N to AK, YT, and NT, E to PQ and S to IA, MT, ID and OR.
Ecological Framework for Mertensia paniculata var. paniculata
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2013)