Crataegus monogyna var. monogyna

us
m
LANE COUNTY, OREGON, U.S.A.
Crataegus monogyna Jacq. var. monogyna
Rosaceae
5 m tall adventive tree, fruit oblong to
oblong-elliptic, dull dark red, 10—14 x 9—
12 mm wide, 1 style/seed, short shoot leaves
on fertile shoots consistently unlobed or
nearly so, leaves on sterile long shoots
consistently deeply lobed, thorns 80—93
mm; damp partly shaded thickets, with
Populus, and lobed leaf forms of Crataegus
monogyna, E bank of Willamette River,
Alton Baker Park, 0.9 air km SE of Skinner
Butte, Eugene, elev. 125 m, 44.0561° N,
123.0831° W
12 Oct 2016 Colls. Peter F. Zika 28570 &
Richard E. Brainerd
03887204