Crataegus monogyna Jacq.

  • 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

    Crataegus monogyna Jacq.

  • Description

    Species Description - Arborescent shrub or tree to 12 m; thorns 1–2 cm, lateral on the twigs and also terminating short stout branches; lvs ovate to rhombic or obovate, cuneate to truncate at base, glabrous, or sometimes slightly hairy beneath when young, dark green, deeply cleft with 3–5(7) lobes, the veins running to the sinuses as well as to the points of the lobes; petioles from 1/4 to fully as long as the blade; fls 0.9–1.2 cm wide, in glabrous or slightly villous compound cymes; sep deltoid, entire; fr red, 5–8 mm thick, with thin flesh and usually a single nutlet. Native of Europe and w. Asia, often escaped from cult. in our range. (C. oxyacantha, a rejected name)

  • Common Names

    oneseed hawthorn