Atriplex coronata |
Atriplex cordulata |
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crownscale, wedgescale |
heart-leaf orach, heartscale |
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Habit | Herbs, erect or decumbent, 0.5–6 dm; branches terete, fructiferous almost to base, scurfy when young. | Herbs, erect, simple, oppositely or alternately branched from base and sparingly so distally, rigid, scurfy, 1–5 dm. | ||||||||||||
Stems | slender to rather coarse, initially erect-ascending, finally spreading-ascending, scurfy when young. |
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Leaves | alternate, subsessile or proximal short petiolate; blade ascending, oblong, oblong-ovate, or lanceolate to elliptic, 5–40 × 2–10 mm, thin, base acute to obtuse, margin entire, apex acute to acuminate. |
alternate except proximalmost ones, blade ovate to cordate-ovate, 5–15(–20) × 3–10(–13) mm; base mostly cordate (to rounded), margin entire or denticulate, apex acute to attenuate, thickish and scurfy-tomentose. |
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Flowers | of both sexes in small axillary glomerules, 5-merous. |
of both sexes mixed in small axillary clusters. |
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Staminate flowers | in glomerules in distal axils, 4–5-merous. |
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Seeds | light brown to amber, 1–1.5 mm. |
deep red-brown, 1.5–1.8 mm. |
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Fruiting | bracteoles almost sessile, broadly cuneate, 2–5 × (2–)2.5–5 mm, united to summit, truncate at summit, sides smooth or obscurely tuberculate. |
bracteoles sessile or subsessile, round-ovate (semi-orbiculate) to deltoid-rhombic or flabellate, slightly compressed, 3–5 mm and as broad, united to middle, deeply toothed, margin with acute teeth, terminal tooth subequal to others or largest, thin and soft at margin, hard at center, scarcely though sometimes tuberculate on faces. |
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2n | = 36. |
= 36, 54. |
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Atriplex coronata |
Atriplex cordulata |
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Distribution |
CA
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CA
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Discussion | Varieties 3 (3 in the flora). Although placed within the Atriplex argentea species complex by P. C. Standley (1916), this taxon appears more nearly allied to A. cordulata, differing mainly in leaf shape, round-ovate or deltoid-ovate to elliptic or lanceolate (not ovate to cordate-ovate), and markedly tuberculate faces of the fruiting bracteoles. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 4. | FNA vol. 4, p. 358. | ||||||||||||
Parent taxa | Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Pusillae | Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Pusillae | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Synonyms | A. elegans var. coronata, Obione coronata | Obione cordulata | ||||||||||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 9: 114. (1874) | Jepson: Pittonia 2: 304. (1892) | ||||||||||||
Web links |