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Key to Anacardiaceae

Anacardiaceae

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(c) Bradley, Keith
1 Leaves simple
(c) Bradley, Keith
  2 Leaves oblong-lanceolate, > 4× as long as wide; leaf apices acuminate
(c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG
  2 Leaves suborbicular, 1-1.5× as long as wide; leaf apices broadly rounded
(c) Campos, Aidan
(c) Bradley, Keith
1 Leaves compound.
(c) Bradley, Keith
(c) Sorrie, Bruce A. - CC-BY
    3 Leaves 3-foliolate.
(c) Sorrie, Bruce A. - CC-BY
      4 Terminal leaflet sessile; fruit red, glandular-pubescent; foliage and stems lacking contact poisons
(c) Ward, Scott G
      4 Terminal leaflet distinctly petiolulate; fruit white or greenish, glabrous or with scattered trichomes; foliage and stems containing contact poisons
(c) Bradley, Keith
    3 Leaves pinnately compound, with (3-) 5-41 leaflets (at least the larger and better-developed on a plant with 5 or more leaflets).
(c) Fleming, Gary P.
        5 Leaf rachis winged (with a flange of leaf tissue, often irregular in width and terminating at each leaflet attachment).
          6 Fruits glandular-pubescent; stamens 5; inflorescence a terminal panicle, the central axis upright as a continuation of the stem
          6 Fruits glabrous; stamens 10; inflorescence of axillary panicles, the central axis angled from the main stem
(c) Hill, Sonnia
(c) Hill, Sonnia
             7 Inflorescence either a terminal panicle (the central axis stiff and upright) or of axillary or terminal clusters of short spikes
             7 Inflorescence of axillary or cauliflorous panicles, the central axis lax and often dangling.
(c) Campos, Aidan
               8 Leaves all or mostly even-pinnate (sometimes some leaves with an apparently terminal or obliquely subterminal leaflet)
(c) Cressler, Alan M.
               8 Leaves odd-pinnate.
                 9 Leaflets 19-41 per leaf, 2-5 cm long, 0.4-1 cm wide, averaging 5× as long as wide; leaflet margins often strongly serrate (to entire); [rare non-native in FL peninsula and s. TX]
                 9 Leaflets 3-25 per leaf, 2.5-20 cm long, 1.5-8 cm wide, averaging 1.2-3× as long as wide; leaflet margins entire or shallowly crenate.
                   10 Leaflet margin with obvious marginal vein; fruits 25-40 mm long; [rare non-native in s. FL]
                   10 Leaflet margin lacking marginal vein (though sometimes thickened and translucent); fruits 4-20 mm long; [collectively widespread].
                     11 Upper surface of leaflets dull, matte; inflorescences from the trunk (cauliflorous) or axillary; fruits 2-3 mm long; foliage and stems lacking contact poisons; [rare non-native in s. FL]
(c) Cressler, Alan M.
                     11 Upper surface of leaflets shiny, as if lacquered; inflorescences axillary near the summit of the stem; fruits 4-14 mm long; foliage and stems containing contact poisons.
(c) Bradley, Keith
                       12 Leaves 3-5 (-7)-foliolate; leaflet base rounded, subcordate, or cordate; leaflets 1.2-1.7× as long as wide; fruits orange or brown; [FL, Martin County southwards]
(c) Sorrie, Bruce A. - CC-BY
                       12 Leaves 7-13 (-15)-foliolate; leaflet base cuneate to rounded; leaflets 2-2.5× as long as wide; fruits white or yellowish; [widespread (though irregular) in our region, in FL south to Highlands County]
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Key F4: Key to Plantae

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1 Leaflets rounded to obtuse at the apex (or acute to acuminate in Gymnocladus); fruit a legume; inflorescence various, but not as below
1 Leaflets acuminate at the apex (except Cupaniopsis with leaflet apices rounded or retuse; fruit a drupe or capsule; inflorescence a panicle with many, small, radially symmetrical flowers.
    3 Leaflet apices rounded, retuse, or occasionally acute; fruit a yellow-orange, 3-valved capsule (green when maturing, sometimes browned after maturation), each of the 3 valves housing a black seed enclosed in an orange aril
    3 Leaflet apices acuminate or acute; fruit a hard brown capsule (Swietenia) or a 5-valved capsule (Toona); the seeds not accompanied by an orange aril.
      4 Leaflets strongly oblique at the base; leaflets fewer (4-10) per leaf; capsules 6-10 cm long; with 5 valves separating at the base of the capsule (but remaining fused at the apex of the persistent column); [s. FL only in our area]
      4 Leaflets weakley oblique at the base (if at all); leaflets numerous (16-40) per leaf; capsules 1.5-2 cm long, with 5 valves separating at the capsule apex (but remaining fused to the receptacle); [c. TN northeastward in our area, uncommon non-native]
  2 Fruit a drupe or berry-like.
        5 Leaflets 4 (sometimes 6 in Exothea) per leaf.
          6 Leaflets often 4 (sometimes 6) per leaf; the rachis never winged; petals lacking cilia; fruit ripening dark purple or black
          6 Leaflets 4, in two opposite and sessile pairs; the rachis sometimes winged; petals ciliate; fruit ripening yellowish-green
        5 Leaflets many (> 4 leaflets), usually 7-many.
             7 Tree dioecious; drupe ca. 5 mm long; stamens (of male flowers) 3-5 (-7)