Polemonium micranthum Benth.
littlebells polemonium (annual Jacob's-ladder; annual polemonium)
Polemoniaceae (Phlox family)
Introduction to Vascular Plants
littlebells polemonium (annual Jacob's-ladder; annual polemonium)
Polemoniaceae (Phlox family)
Introduction to Vascular Plants
Species Information
General:
Slender annual herb from a taproot; stems simple and erect to freely branched and spreading, soft-glandular-hairy or partly hairless, 5-30 cm tall.
Leaves:
Alternate, pinnately compound; leaflets 7 to 15, opposite or offset, egg-shaped to elliptic, 2-9 mm long, 1-4 mm wide.
Flowers:
Inflorescence open, of solitary terminal flowers that are soon opposed by a leaf, flower-stalks short at first but elongating to 1-2 cm; corollas white, saucer-shaped, 2-5 mm long, the 5 lobes about equal to the tube; calyces 3-7 mm long, hairy, the 5 pointed lobes slightly longer than the tube.
Fruits:
Capsules, 3-chambered.
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Polemonium micranthum
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) |
566 | 330 | 1190 |
| Slope
Gradient (%) |
26 | 0 | 360 |
|
Aspect (degrees) |
24 | 17 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 1 | 5 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
44 | ||
| Modal
BEC Zone Class |
BG | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(26), IDF(8), PP(9) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Vernally moist to dry disturbed areas in the steppe and lower montane zones; locally frequent in SC BC; S to MT, UT and CA; Argentina, Chile.Status Information
Synonyms
Synonyms and Alternate Names:
Polemoniella micrantha (Benth.) A. Heller