Tolmiea menziesii (Pursh) Torr. & A. Gray
piggy-back plant (youth-on-age)
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #6886)


Map

E-Flora BC Static Map

Distribution of Tolmiea menziesii
Click here to view the full interactive map and legend

Species Information

General:
Perennial herb from scaly rhizomes; flowering stems 30-80 cm tall; plants hairy throughout, glandular-hairy above.
Leaves:
Basal leaves heart-shaped, 3-10 cm wide, nearly as long, shallowly 5- to 7-lobed, sharply toothed, hairy, sometimes with small buds at base of leaf blades, long-stalked, the stalks hairy; stem leaves few, similar to the basal, reduced; stipules leaf-like, elliptic, 3-8 mm long, irregularly toothed, short-bristly.
Flowers:
Inflorescence a many-flowered, spike-like, terminal cluster, 10-30 cm long, the flowers irregular; petals usually 4, brownish-purple, 8-12 mm long, thread-like; calyces greenish-purple to brown, free of ovary, the hypanthium tubular, 5-9 mm long, the upper 3 lobes larger than lower 2, the calyx deeply cleft between lower 2; stamens 3.
Fruits:
Capsules, 9-14 mm long, equally 2-valved; seeds about 0.5 mm long, finely spiny.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Tolmiea menziesii

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)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
149 0 1080
Slope Gradient (%)
8 0 119

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

126 18 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 3 7
Modal Nutrient Regime
Class
D
# of field plots
 species was recorded in:
192
Modal BEC Zone Class
CWH

All BEC Zones (# of stations/zone) species was recorded in

CDF(1), CWH(177), ICH(1), IDF(3), MH(2), SBS(1)

Habitat and Range

Moist forests and streambanks in the lowland and montane zones; common in coastal BC; N to AK and S to CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Tiarella menziesii Pursh