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

Heuchera chlorantha Piper
meadow alumroot (tall alumroot)
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Rosemary Taylor  Email the photographer   (Photo ID #60646)

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Distribution of Heuchera chlorantha
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Species Information

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General:
Perennial herb from short, thick rhizomes; stems erect, 40-100 cm tall, conspicuously long-soft-hairy below, glandular-hairy above.
Leaves:
Basal leaves heart-egg- to almost kidney-shaped, 4-8 cm wide, not quite as long, palmately 5- to 9-lobed, the lobes shallow, broadly rounded, doubly-toothed; long-stalked, the stalks densely hairy; stem leaves lacking; stipules membranous, fused to the leaf stalks.
Flowers:
Inflorescence spike-like, densely-flowered, to 15 cm long; bracts membranous; petals white to greenish-yellow, often absent or partly absent, clawed, less than half length of sepals, the blades linear to broadly spoon-shaped; calyces green to greenish-yellow, narrowly bell-shaped, joined to ovary almost to top, the free hypanthium slightly lop-sided, about as long as part joined to ovary, lined with a thick glandular disk, calyx lobes 5, nearly equal, oblong, about as long as rest of calyx, tips blunt to rounded; stamens 5, opposite the calyx lobes.
Fruits:
Capsules, 9-11 mm long, opening along the beaks; seeds dark brown, 0.7-0.8 mm long, with lengthwise rows of slender spines.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to moist grassy bluffs, streambanks, meadows, rocky river banks, roadsides and forest margins in the lowland and montane zones; infrequent on the Queen Charlotte Islands, WC BC, S Vancouver Island and the adjacent mainland; S to ID and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Heuchera chlorantha

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) 19 886 2210
Slope Gradient (%) 0 28 85
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
12 74 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 6
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
40
Modal BEC Zone Class
IDF
All BEC Zones (# of stations/zone) species was recorded in: CWH(7), ESSF(2), IDF(13), MH(2), MS(2), PP(1), SBS(8)

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 cool mesothermal.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References