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Key to AtriplexView taxon page for Atriplex
(For a list of species in Atriplex, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1. Shrub or subshrub; main stem clearly woody 2. Leaf length generally > 5 × width, margins entire  Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.). ; fruit bracts together 4-winged or tips long, tubercles in vertical rows; branch tips not spiny 3. Fruit bract  Reduced, leaf- or scale-like structure subtending a branch, cone scale, peduncle, pedicel, or flower. tips long, tubercles in vertical rows; shrub or subshrub 1–6 dm ..... A. gardneri var. falcata 4. Twigs generally slender; shrub 10–25 dm; leaves 10–35 mm, 1–3 mm wide; fruit bracts 4–8 mm, 4–6 mm wide ..... var. linearis 4' Twigs generally not slender; shrub 3–20 dm; leaves 10–50 mm, 2–8 mm wide; fruit bracts 4–25 mm, 4–12 mm wide 5. Fruit bracts entire to dentate  Having margins with sharp, relatively coarse teeth pointing outward, not tipward. ; widespread ..... var. canescens 5' Fruit bracts irregularly to deeply sharp-dentate; s CA 2' Leaf length < 5 × width, margins entire to dentate; fruit bracts not 4-winged, tubercled or not; branch tips spiny or not 8' Leaf margin entire to wavy or irregular-sparsely dentate; shrub or subshrub <= 40 dm; fruit bracts free to fused above middle 9. Shrub or subshrub < 5 dm; branches ascending  Curving or angling upward from base, or about 30-60 degrees less than vertical or away from axis of attachment. to erect  Upright; vertically oriented. ; leaf  Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). sessile  Without a petiole, peduncle, pedicel, or other kind of stalk. – SCo, WTR; stem prostrate  Lying flat on the ground. ..... A. glauca 9' Shrub <= 40 dm; branches spreading  Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal. to erect; leaf sessile to petioled 10. Plant < 15 dm; leaf blade  Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped. narrowly elliptic  In the shape of a flattened circle or ellipse; wider than linear to ovate  Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf. , oblong  Longer than wide, with nearly parallel sides; wider than linear. to hastate  Arrowhead-shaped, with two basal lobes oriented more or less perpendicularly to the long axis. ..... A. amnicola 10' Plant 8–40 dm; leaf blade ovate to deltate  More or less equilaterally triangular, with the corners rounded or not. (± hastate) 11. Fruit bracts 4.5–9(12) mm, round to ± reniform  Kidney-shaped; often pertaining to a leaf in which the blade base on both sides of the petiole is rounded and concave. , generally tubercled ..... A. nummularia 11' Fruit bracts 2–6 mm, ovate to round or ± spheric, smooth 7' Branch tips spiny – generally stiffly spreading 13. Fruit bracts 5–20(24) mm, margins wide, leaf-like 14' Fruit bracts fused ± to middle around fruit, entire and spheric proximally, compressed  Flattened side-to-side or front-to-back. and irregularly dentate distally ..... A. spinifera 13' Fruit bracts 2–6 mm, margins not wide and leaf-like 15' Distal leaves generally ± sessile to short-petioled 16' Leaf blade ovate to deltate or ± hastate, 10–50 mm wide 1' Annual, perennial  Completing life cycle (germination through death) in more than two years or growing seasons, generally non-woody (at least above ground) to woody; includes perennial herbs as well as subshrubs to trees; the abbreviation 'per' only refers to perennial herb, not to the word 'perennial' alone. herb, or subshrub; main stem herbaceous to ± woody at base 18. Perennial herb to subshrub 19. Stem generally erect; leaves entire 19' Stem generally prostrate to decumbent  lying mostly flat on the ground but with tips curving up. ; leaves entire to dentate, wavy-dentate, or crenate  Pertaining to margins with shallow, rounded teeth, between which are usually acute sinuses (i.e., scalloped) 21. Leaf bases long-tapered to short-petioled, entire to wavy-dentate, dentate, or crenate 22. Fruit bracts thin; leaves generally serrate  Having margins with sharp, fine to coarse teeth generally pointing tipward, not outward; margins with such teeth on such primary teeth are doubly serrate. ..... A. suberecta (2) 22' Fruit bracts spongy or fleshy; leaves entire to wavy-dentate 21' Leaves generally sessile, entire 24' Fruit bracts fused proximally to distally, entire to dentate or crenate 25. Fruit bracts dentate distally; leaves lanceolate  Narrowly elongate, widest in the basal half, often tapered to an acute tip. to elliptic 25' Fruit bracts entire to shallowly dentate throughout; leaves elliptic to ovate 28. Leaves generally green, glabrous to sparsely powdery or fine-scaly 29. Pistillate flowers of 2 kinds; fruit bracts wide-elliptic to ± round, smooth, net-veined; seeds vertical between bracts, or horizontal in calyx ..... A. hortensis 29' Pistillate flowers of 1 kind; fruit bracts generally not wide-elliptic to ± round, smooth to tubercled or ribbed, not net-veined; seeds vertical between bracts 30. Fruit bracts fused proximally, dentate distally; staminate flowers in clusters of elongated terminal spikes or panicles  1. In flowering plants excluding Asteraceae, Cyperaceae, Poaceae, and some other groups, a branched inflorescence in which the basal or lateral flowers (or some of them) open before the terminal or central flowers on any axis. 2. In Asteraceae, Cyperaceae, Poaceae, and some other groups, a panicle-like inflorescence is one in which at least some of the inflorescence units (e.g., heads in Asteraceae; spikelets in Cyperaceae and Poaceae), instead of individual flowers, are attached (stalked or unstalked) to branches and not directly to the main axis of the inflorescence and in which floral development may or may not proceed as in 1. ..... A. serenana var. serenana (2) 30' Fruit bracts free to fused proximally, entire to dentate proximally; staminate, pistillate flowers mixed or staminate flowers in short spikes 31' Fruit bracts entire to variously dentate, not ± round 32. Fruit bracts few-dentate to dentate 33' Leaves linear  Elongate, with nearly parallel sides; narrower than elliptic or oblong. to triangular-ovate; fruit bracts smooth or 2-tubercled 34. Brown seeds elliptic, wider than long; fruit bracts smooth or 2-tubercled – leaves generally thickened, ± scaly ..... A. dioica 35' Seeds of 2 kinds; fruit bract not ribbed 36' Fruit bracts 3–7 mm, margins entire to finely dentate; leaves triangular-hastate ..... A. prostrata (2) 28' Leaves ± gray-, ± yellowish-, or ± white-green, densely fine-scaly 37. Fruit bracts free to fused proximally – stem generally striate; fruit bracts ribbed; inflorescence spike- or panicle-like, terminal, dense ..... Extriplex joaquinana (2) 37' Fruit bracts fused ± proximally to near tip 38. Fruit bract widest proximally, generally ovate to deltate or diamond-shaped 39. Leaves coarsely wavy-dentate, distal entire – fruit bracts hard; leaves densely fine-scaly abaxially, ± green adaxially, red in age ..... Atriplex rosea 39' Leaves generally all entire 40. Stem 0–few-branched, ascending to erect, 1–8 dm; fruit bracts 2.5–5 mm 41' Base of proximal leaf blades cordate  Heart-shaped; often pertaining to a leaf in which the blade base on both sides of the petiole is rounded and convex. ; fruit bracts 3–5 mm; GV ..... A. cordulata 42. Fruit bracts deltate-ovate, central tooth  1. A small, pointed projection, such as on the margin of a leaf, sepal, or petal. 2. The free tips of otherwise fused structures, such as sepals or petals (somewhat archaic usage); smaller than lobes. generally > others; GV ..... var. cordulata 40' Stem many-branched, prostrate to erect, < 4 dm; fruit bracts 1–4 mm 43' Fruit bracts 2–4 mm, entire to few-dentate, surfaces smooth or tubercled; GV, SCo, PR 44. Staminate flower clusters terminal, pistillate flower clusters axillary  Pertaining to or within an axil, especially a leaf axil. ..... A. persistens (2) 44' Staminate flower clusters axillary, or staminate and pistillate flowers mixed, generally in axillary clusters 45. Stem woolly near tips; leaves generally opposite  1. Arranged in pairs along an axis - e.g., two leaves per node. 2. Occurring in the same rank, directly above or below, as 'stamens opposite petals'. 3. Located directly across from. ; SCo, PR ..... A. parishii 45' Stem glabrous to densely scaly near tips; leaves alternate  1. Arranged singly, often spirally, along an axis - e.g., one leaf per node. 2. Occurring in different ranks, appearing to be between, not directly above or below, as 'stamens alternate petals'. or opposite; GV, SnJV 46' Leaves generally opposite; fruit bracts generally tubercled; GV 38' Fruit bracts generally widest at middle or distally, fan- to wedge-shaped or ± round 48. Staminate flowers in terminal clusters, pistillate flowers in axillary clusters 49' Plant erect to decumbent (spreading); fruit bracts >= 2 mm 50. Plant < 3(5) dm; fruit bracts 3–5 mm; leaves entire 52' Leaf blades 10–50 mm; staminate inflorescence spike  1. In flowering plants excluding Asteraceae, Cyperaceae, Poaceae, and some other groups, an unbranched inflorescence in which the flowers are sessile and nearly always open from the bottom to the top of the inflorescence. 2. In Asteraceae, Cyperaceae, Poaceae, and some other groups, a spike-like inflorescence is one in which the inflorescence units (e.g., heads in Asteraceae; spikelets in Cyperaceae and Poaceae), instead of individual flowers, are sessile and attached directly to the main axis of the inflorescence, not to branches, and in which floral development may or may not proceed as in 1. or panicle 1. In flowering plants excluding Asteraceae, Cyperaceae, Poaceae, and some other groups, a branched inflorescence in which the basal or lateral flowers (or some of them) open before the terminal or central flowers on any axis. 2. In Asteraceae, Cyperaceae, Poaceae, and some other groups, a panicle-like inflorescence is one in which at least some of the inflorescence units (e.g., heads in Asteraceae; spikelets in Cyperaceae and Poaceae), instead of individual flowers, are attached (stalked or unstalked) to branches and not directly to the main axis of the inflorescence and in which floral development may or may not proceed as in 1. , elongate; widespread ..... var. serenana (2) 48' Staminate flowers in axillary clusters, or staminate and pistillate flowers mixed, generally in axillary clusters 53' Fruit bracts not spongy, 2–6(8) mm, wedge-shaped to round, generally compressed, or if spheric, then densely tubercled 54' Fruit bracts generally wedge-shaped to obovate or ± spheric, entire proximally, dentate distally 56. Fruit bract tip ± truncate  Abruptly (not gradually) narrower or smaller at base or tip, as if cut straight across or nearly so. to notched, 3–5-dentate – generally SNE, DMoj, including edges ..... A. truncata 56' Fruit bract tip acute  Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle. to rounded in outline 57' Leaf margin entire, wavy or flat 58. Leaf blade base ± obtuse  Having a short-tapered, blunt tip or base, the sides convex or straight and converging at more than a right angle. to tapered  Gradually (not abruptly) narrower or smaller at base or tip. ; fruit bracts 2.5–6 mm, fused proximally 59. Herbage yellowish green; staminate flowers 3(4)-merous; middle tooth of distal margin of fruiting bractlets generally largest and > other teeth ..... A. flavida 59' Herbage gray-green; staminate flowers (4)5-merous; middle tooth of distal margin of fruit bracts generally not > other teeth ..... A. coronata 60' Fruit bracts 4.5–6 mm, 3–5 mm wide 61. Stem decumbent to ascending; fruit bracts together ± compressed, tubercles generally few, generally < marginal teeth ..... var. coronata 61' Stem ± erect; fruit bracts together ± spheric, tubercles dense, generally ± = marginal teeth ..... var. notatior 58' Leaf blade base generally ± hastate to tapering; fruit bracts 4–8 mm, fused to near tip ..... A. argentea 62. Stem decumbent to erect, 15–30 cm; fruit bracts sessile 62' Stem erect, 30–80 cm; fruit bracts short-stalked
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