Ostrya

• Authority

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

• Family

  Betulaceae

• Scientific Name

  Ostrya

• Description

  Genus Description - Staminate catkins dense, the spirally arranged, depressed-ovate scales each terminating in a sharp point and subtending a cluster of several stamens without perianth; filaments short, divided at the summit, each branch bearing an apically pilose half-anther; pistillate catkins slender, loosely fld, the ovate, hairy bracts caducous, subtending 2 fls each enclosed within an ovoid pouch composed of united bract and bractlets, the cal minute; bracts accrescent and inflated in fr, forming a hops- like strobilus; fr a flattened-ovoid nutlet; trees or tall shrubs with rough, flaky bark, the catkins opening with the lvs in the spring. 10, mainly N. Temp.

• Common Names

  hop-hornbeam, ironwood