Acer saccharum Marshall

  • Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family


  • Scientific Name

    Acer saccharum Marshall

  • Description

    Species Description - Climax tree to 40 m; bark medium-gray, becoming roughened with loose-edged plates; lvs flat, about as wide as long, usually glabrous beneath except for a few tufts of hairs in the vein-axils, (3)5-lobed with rounded sinuses, the lobes usually bearing a few large sharp teeth, the central lobe usually with nearly parallel sides to a pair of large teeth at about mid-length; fls in umbels from the terminal or uppermost lateral buds, appearing as the lf-buds open, drooping on slender, hairy pedicels to 8 cm; cal gamosepalous, 2.5–6 mm, ± hirsute; pet none; disk extrastaminal; ovary and fr glabrous; mericarps of the fr 2.5–4 cm, the seed- bearing basal parts diverging at right angles to the pedicel, the wings curved forward, divergent at an angle of 120° or less; 2n=26. Rich to fairly dry woods, especially in calcareous soils; N.S. and N.B. to Minn. and e. S.D., s. to N.J., Del., w. Va., n. Ga., Tenn., and Mo. (Saccharodendron s.; Acer saccharophorum) Plants intermediate toward A. barbatum, occurring along the s. boundary of our range, have been called var. schneckii Rehder, or var. regelii (Pax) Rehder, the latter name however based on a specimen of A. barbatum. Spp. 2–4 often treated as parts of a single sp.

  • Common Names

    sugar maple, hard maple