Artemisia tridentata |
Artemisia nova |
|
---|---|---|
big sagebrush |
black sagebrush |
|
Habit | Shrubs evergreen, 2–30 dm, crowns rounded or flat-topped; taprooted. | Shrubs evergreen, 1–3(5) dm. |
Stems | canescent or tomentose. |
glabrous to tomentose or glandular-puberulent. |
Leaves | cauline; wedge-shaped, 0.5–3.5 cm; tips shallowly 3-lobed; surfaces densely gray-canescent or tomentose. |
cauline, usually wedge-shaped, 0.2–2 cm; tips obtuse to 3-lobed; surfaces canescent to tomentose or glandular-puberulent; petioles gradually or abruptly tapered. |
Inflorescences | panicle-like. |
narrow panicle-like arrays. |
Involucres | cylindric to campanulate, 1–4 mm. |
short-cylindric to ovoid, 2–3 mm. |
Receptacles | glabrous. |
glabrous. |
Florets | 3–8(11); bisexual. |
2–6. |
Phyllaries | in several unequal series, triangular to lanceolate or elliptic; outer gradually shorter; margins membranous; tips acute or obtuse; surfaces tomentose. |
in 3–5 unequal series; ovate to elliptic; margins membranous; tips acute or obtuse; surfaces outer puberulent; inner glabrous, resinous; shiny. |
Fruits | 1–2 mm, pubescent or glabrous. |
1–1.5 mm, glabrous or resinous. |
Heads | discoid; erect, sessile or peduncled. |
discoid; erect, sessile or peduncled. |
2n | =18, 36. |
=18, 36. |
Artemisia tridentata |
Artemisia nova |
|
Distribution | ||
Discussion | Western North America. 4 subspecies; 3 subspecies treated in Flora. |
Shrublands, flats, slopes. Flowering Jun–Sep. 1200–1500 m. BR, Owy. CA, ID, NV; northeast to MT, east to CO, southeast to NM. Native. |
Source | Flora of Oregon, volume 2, page 194 Kenton Chambers |
Flora of Oregon, volume 2, page 192 Kenton Chambers |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Artemisia arbuscula ssp. nova, Artemisia arbuscula var. nova | |
Web links |
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