Holosteum umbellatum L.
umbellate chickweed (jagged chickweed)
Caryophyllaceae (Pink family)
Introduction to Vascular Plants
umbellate chickweed (jagged chickweed)
Caryophyllaceae (Pink family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Holosteum umbellatum ssp. umbellatum
Species Information
General:
Annual herb from a taproot; stems erect, 1-several, simple or basally branched, sticky above, glabrous below, stems 5-35 cm tall.
Leaves:
Leaves mainly in a basal rosette, lanceolate to oblong, 1-2 cm long, short-stalked, soon deciduous; stem leaves opposite, 2-3 pairs remote from the inflorescence, narrowly egg-shaped to oblong, 1-3.5 cm long, unstalked; stipules lacking.
Flowers:
Inflorescence of 2-16 flowers in a terminal umbel-like cluster with a tiny, bracted involucre; petals 5, oblanceolate, white or pale pink, raggedly-frilled, 5-7 mm long; sepals oblanceolate, distinct, 2.5-5 mm long.
Fruits:
Capsules egg-shaped to cylindric, 4-6 mm long, 6-valved, the tips of the valves recurved to tightly curled down; seeds prominently pimply-warty, the warts with interlocking starlike bases.
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 Holosteum umbellatum
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) |
514 | 350 | 810 |
| Slope
Gradient (%) |
29 | 0 | 82 |
|
Aspect (degrees) |
285 | 60 | 337 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 2 | 5 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
13 | ||
| Modal
BEC Zone Class |
PP | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(5), ICH(1), PP(7) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry disturbed areas in the lowland and steppe zones; infrequent in SC BC, rare in SW BC, known from the Saanich Peninsula and lower Fraser Valley; introduced from Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Holosteum umbellatum subsp. umbellatum