Douglas-fir tree "Torquis" variety

Details Douglas-fir tree "Torquis" variety Douglas-fir tree "Torquis" variety

1989-04-20

1991-06-11

Locker, Howard J.

Plants

Rose

Climber

A01H 500

Patent

active

PP0075531

ABSTRACT:
A new and distinct variety of Douglas-fir, Pseudotsuga menziesii, variety "Torquis", an intervarietal hybrid of coastal variety (Pseudotsuga menziesii var. menziesii) and inland variety (Pseudotsuga menziesii var. glauca), having generally upright growth with a curving, twisting, non-directional, at times corkscrew-like pattern to stem and branches, and smaller than average size, while retaining the foliage color and foliage character of a normal Douglas-fir, was discovered in a Douglas-fir test planting on a site near Grangeville, Id., and was asexually reproduced by rooting and grafting.

REFERENCES:
patent: PP5457 (1985-04-01), Holden
patent: PP5711 (1986-04-01), Sturrock
P. Den Ouden et al., 1985, "Manual of Cultivated Conifers--Hardy in the Cold- and Warm-Temperate Zone", The Hague, printed in the Netherlands, pp. 368-377.

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