Artemisia dracunculus L.
tarragon
Asteraceae (Aster family)
Introduction to Vascular Plants
tarragon
Asteraceae (Aster family)
Introduction to Vascular Plants
Species Information
General:
Perennial, slightly to strongly aromatic herb from a stout rhizome; stems erect, several, 0.5-1.5 m tall.
Leaves:
Lower leaves usually soon deciduous, main stem leaves linear or sometimes lanceolate, occasionally 3-parted, entire, glabrous or sometimes long-hairy; mostly 3-8 cm long, 2-10 mm wide.
Flowers:
Heads disciform, numerous in an open, branched inflorescence; involucres hemispheric, 2-3 mm tall; involucral bracts oblanceolate to elliptic with broad, translucent or thin, dry, papery margins, glabrous; receptacles glabrous; female flowers 6-30; disk flowers 10-30.
Fruits:
Achenes glabrous.
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 Artemisia dracunculus
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) |
806 | 250 | 1870 |
| Slope
Gradient (%) |
35 | 0 | 90 |
|
Aspect (degrees) |
186 | 1 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 0 | 6 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
190 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(63), BWBS(1), IDF(88), MS(5), PP(31) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry roadsides, meadows and open forests in the lowland, steppe and montane zones; common in BC east of the Coast-Cascade Mountains and S of 57degreeN; circumboreal, N to AK, YT and NT, E to MB and S to MO, KS, TX, NM, AZ, CA and MX, Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Artemisia dracunculoides Pursh
Artemisia dracunculoides var. dracunculina (S. Wats.) Blake
Artemisia dracunculus subsp. glauca (Pallas ex Willd.) Hall & Clements
Artemisia dracunculus var. glauca (Pallas ex Willd.) Bess.
Artemisia glauca Pall. ex Willd.
Artemisia glauca var. dracunculina (S. Watson) Fernald
Oligosporus dracunculus (L.) Poljakov
Oligosporus dracunculus subsp. dracunculinus (S. Wats.) W.A. Weber
Oligosporus dracunculus subsp. glaucus (Pallas ex Willd.) A.& D. L÷ve