Artemisia campestris
Artemisia cana
beach wormwood, field sagewort, field wormwood, northern wormwood, Pacific sagewort, sand wormwood
dwarf sagebrush, hoary sagebrush, silver sagebrush, silver wormwood, sticky sagebrush
usually 1–5, turning reddish brown, (often ribbed) tomentose or glabrous.
light brown to gray-green (woody, somewhat pliable, leafy), persistently canescent to glabrescent.
persistent or deciduous, mostly basal;
basal blades 4–12 cm;
cauline gradually reduced, 2–4 × 0.5–1.5 cm, 2–3-pinnately lobed, lobes linear to narrowly oblong, apices acute, faces densely to sparsely white-pubescent.
deciduous, whitish gray or green to dark gray-green;
blades narrowly elliptic to lanceolate, 1.5–8 × 0.2–1 cm, usually entire, sometimes irregularly lobed, sparsely to densely hairy.
broadly turbinate, 2.5–3(–5) × 2–3.5(–7) mm.
(subtended by green, leaflike bracts) narrowly to broadly campanulate, 3–4 × 2–5 mm.
pistillate 5–20; functionally staminate 12–30;
corollas pale yellow, sparsely hairy or glabrous.
4–20;
corollas 2–3 mm, resinous (style branches ellipsoid, to 2.3 mm, exsert, gland-dotted).
(margins scarious) glabrous or villous-tomentose.
ovate or lanceolate (scarious margins nearly invisible), densely canescent.
(pedunculate) in (mostly leafless) paniculiform arrays.
in (congested, leafy) paniculiform arrays 10–20 × 0.2–7 cm.
oblong-lanceoloid, somewhat compressed, 0.8–1 mm, faintly nerved, glabrous.
(light brown) 1–2.3 mm, resinous.
Artemisia campestris
Artemisia cana
Subspecies ca. 7 (3 in the flora).
Artemisia campestris varies; each morphologic form grades into another. The present circumscription is conservative in that only three subspecies are recognized; the subspecies usually can be separated geographically as well as morphologically. Populations in western North America consist primarily of subsp. pacifica; east of the continental divide, plants are assigned to subsp. canadensis in northern latitudes and to subsp. caudata in southern latitudes.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Perennials; stems 2–5; basal rosettes persistent | subsp. pacifica |
1. Biennials; stems 1(–3); basal rosettes not persistent (withering before flowering) | → 2 |
2. Involucres globose, 3–4 × 3.5–5 mm; n of 50°, primarily Canada | subsp. canadensis |
2. Involucres turbinate, 2–3 × 2–3 mm; s of 50°, e from Rocky Mountains to coastal North America | subsp. caudata |
1. Shrubs 100–150 cm; leaves 2–8 cm (entire); primarily e of continental divide | subsp. cana |
1. Shrubs 50–90 cm; leaves 1.5–4 cm (usually some with irregular lobes); w of continental divide | → 2 |
2. Stems felty-tomentose; leaves green to gray-green; involucres 4–5 mm diam.; California, Nevada, Oregon | subsp. bolanderi |
2. Stems hairy (not felty-tomentose); leaves green to dark green; involucres 2–3(–4) mm diam.; Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming | subsp. viscidula |
- Local floras:
BC, 
OR, 
WA - Local Web sites:
CalFlora, CalPhotos, 
Flora NW, 
Go Botany, 
IL Wildflowers, 
KS Wildflowers, 
MI Flora, 
MN Wildflowers, 
MO Plants, 
PNW Herbaria 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
