Heuchera micrantha Douglas ex Lindl.
small-flowered alumroot (crevice alumroot)
Saxifragaceae (Saxifrage family)
Introduction to Vascular Plants
small-flowered alumroot (crevice alumroot)
Saxifragaceae (Saxifrage family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Heuchera micrantha var. diversifolia
Species Information
General:
Perennial herb from well-developed, horizontal to ascending rhizomes, clothed with old, brown leaf-bases and stipules; stems 1 to several, erect, 15-60 cm tall, long soft-hairy below, strongly glandular-hairy in the inflorescence.
Leaves:
Basal leaves kidney- to heart-egg-shaped, 3-8 cm wide, either shorter than wide with 5 to 7 rounded, shallow lobes, or longer than wide with pointy lobes cleft 1/3 their length, stiff-hairy below, sometimes also above, stalked, the stalks long, sparsely to densely hairy or rarely smooth; stem leaves 1 or 2, greatly reduced, the upper bract-like; stipules membranous, fused to the leaf-stalks.
Flowers:
Inflorescence an open, many-flowered cluster, the branches and flower-stalks thread-like, the bracts linear; petals white, 5, 2- to 4-times longer than sepals, clawed, the claws slender, blades diamond- to spoon-shaped; calyces greenish-yellow, bell-shaped, long-soft-hairy, joined to ovary almost to top, the free hypanthium about 0.5 mm long; calyx lobes 5, oblong-egg-shaped, about 2/3 length of lower portion; stamens 5, longer than calyx lobes.
Fruits:
Capsules, 5-6 mm long, egg-shaped, opening along the beaks; seeds deep brownish-purple, 0.6-0.7 mm long, with lengthwise rows of 25-30 spines.
Ecology
Ecological Framework for Heuchera micrantha
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)
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) |
455 | 10 | 2134 |
| Slope
Gradient (%) |
45 | 0 | 135 |
|
Aspect (degrees) |
146 | 23 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 0 | 5 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
86 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CDF(26), CMA(6), CWH(37), ICH(1), IDF(7), MH(2), MS(1) | ||
|
Source:
Klinkenberg 2013
|
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