Artemisia annua |
Artemisia dracunculus |
|
---|---|---|
dragon sagewort, tarragon |
||
Habit | Herbs or subshrubs perennial, 5–15 dm; taproots woody. | |
Stems | glabrous or occasionally villous-puberulent. |
|
Leaves | cauline, numerous, linear, 2–8 cm; margins entire, rarely some few-cleft; tips acute or acuminate; surfaces glabrous, sessile. |
|
Inflorescences | panicle-like. |
|
Involucres | spherical or hemispheric, 2–4 mm. |
|
Receptacles | glabrous. |
|
Florets | 15–45; outer pistillate; inner functionally staminate. |
|
Phyllaries | in several equal series, with a few short outer, lanceolate; margins membranous; tips obtuse; surfaces glabrous. |
|
Fruits | 0.5–1 mm, glabrous. |
|
Heads | disciform; erect or nodding, peduncled. |
|
2n | =18. |
|
Artemisia annua |
Artemisia dracunculus |
|
Distribution | ||
Discussion | Open woodlands shrublands, thickets, grasslands, riverbanks, rocky slopes and cliffs, disturbed areas. Flowering Jul–Oct. 50–1600 m. BR, BW, Col, ECas, Lava, Owy. CA, ID, NV, WA; north to AK, northeast to Quebec, east to MA, southeast to TX. Native. |
|
Source | Flora of Oregon, volume 2, page 191 Kenton Chambers |
|
Sibling taxa | ||
Synonyms | Artemisia dracunculus var. dracunculus | |
Web links |
|
|