E-Flora BC: Electronic Atlas of the Flora of British Columbia

Heuchera richardsonii R. Br.
Richardson's alumroot
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #3837)

E-Flora BC Static Map
Distribution of Heuchera richardsonii
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Species Information

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General:
Perennial herb from stout, branched stem-bases; stems erect, 40-70 cm tall, somewhat stiff-hairy below, with white hairs, glandular-hairy above.
Leaves:
Basal leaves heart-kidney-shaped, 3-6 cm wide, palmately 7- to 9-lobed, the lobes shallow, toothed, somewhat whitish-hairy below, usually smooth above, stalked, the stalks long, hairy; stem leaves lacking; stipules membranous, fused to the leaf-stalks.
Flowers:
Inflorescence a narrow, many-flowered cluster; petals purplish, 5, clawed, blades spoon-shaped, equal to or slightly longer than sepals; calyces greenish, strongly glandular-hairy, cylinder bell-shaped, joined to ovary to halfway, the free hypanthium lop-sided, 2-4 mm long on one side, less than half that on other; calyx lobes 5, oblong, erect, about length of hypanthium; stamens 5, slightly longer than calyx lobes.
Fruits:
Capsules, opening along the beaks; seeds dark brown, 0.7 mm long, spiny.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry sandy grasslands, gravelly lake shores and slopes in the montane zone; locally frequent in NE BC; N to NT, E to ON and S to IN, MO, OK and CO.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Heuchera richardsonii

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

Minimum

Average

Maximum

Elevation (metres) 1853 1924 1996
Slope Gradient (%) 40 45 50
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
200 200 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 2
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
2
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: ESSF(2)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Heuchera hispida auct. non Pursh
Heuchera richardsonii var. affinis Rosend., Butters & Lakela
Heuchera richardsonii var. grayana Rosend., Butters & Lakela
Heuchera richardsonii var. hispidior Rosend., Butters & Lakela
Heuchera richardsonii var. richardsonii

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References