Atriplex truncata |
Atriplex rosea |
|
---|---|---|
truncate saltbrush, wedgescale orache |
red orache, tumbling orache |
|
Habit | Herbs annual, monoecious, 1.5–5(9) dm, gray-farinose. | Herbs annual, monoecious, 1–10(20) dm, grayish farinose to green and glabrate. |
Stems | erect to ascending; much branched and spreading. |
erect to ascending; branches simple to much branched throughout, sometimes forming tumbleweeds. |
Leaves | alternate; lowermost sometimes opposite; blades triangular-ovate or rhombic to suborbicular, 1.2–3.2 × 1–2.7 cm, bases truncate, subtruncate, subhastate, or rounded; margins entire; tips rounded to truncate, gray-farinose on both surfaces, sessile or short-petiolate distally to 6 mm. |
alternate; blades ovate to lanceolate; (1)1.5–6 × 1–3(3.5) cm, bases broadly cuneate to rounded, sometimes hastate on lower leaves; margins wavy to coarsely dentate; tips obtuse, farinose at least on lower surface; petioles short to subsessile; (0)2–13 mm. |
Inflorescences | axillary clusters of flowers arranged in short spikes; upper clusters staminate or sometimes mixed with pistillate flowers. |
axillary few-flowered clusters and terminal spikes. |
Staminate flowers | perianths 4–5-lobed. |
perianths 4–5-lobed. |
Pistillate flowers | perianths absent, enclosed by 2 bracteoles. |
perianths absent, enclosed by 2 bracteoles. |
Seeds | monomorphic, 1–1.5 mm, brown. |
dimorphic; vertical, 1–2 mm; black; shiny or 2–2.5 mm, brown; dull. |
Fruiting bracteoles | fused to tips; shield-shaped, 2.4–3 mm; tips truncate with 3 shallow teeth; faces smooth or with 1–2 short tubercles, sessile to substipitate. |
fused to ~ halfway, rhombic to triangular rhombic, bases broadly cuneate to sometimes subhastate; margins toothed in upper ?; tips acute to obtuse; faces smooth or short tuberculate, sessile or with stipe to 5 mm. |
2n | =18. |
=18. |
Atriplex truncata |
Atriplex rosea |
|
Distribution | ||
Discussion | Meadows, near lakes or streams. Flowering Jun–Aug. 300–1500 m. BR, BW, ECas, Lava, Owy. CA, ID, NV, WA; north into British Columbia, northeast to Saskatchewan, east to WY, southeast to NM. Native. |
Disturbed areas, roadsides. Flowering Jul–Sep. 0–1500 m. BR, BW, Col, ECas, Est, Lava, Owy, WV. CA, ID, NV, WA; scattered throughout most of North America; Asia, Europe. Exotic. |
Source | Flora of Oregon, volume 2, page 72 Bridget Chipman |
Flora of Oregon, volume 2, page 71 Bridget Chipman |
Sibling taxa | ||
Web links |
|
|