246-Weeds 6

Fact Sheet No. 246, UMaine Extension No. 2199

Prepared by David E. Yarborough and Timothy M. Hess, The University of Maine, Orono, ME 04469.  Replaces March 1987 by Tom DeGomez, David Yarborough and Christopher Campbell. Revised April 2002.

Nannyberry, Viburnum cassinoides

Flowering perennial shrub, flowers May-June.  Large, rounded shrub up to 30′ with young shoots covered with rust-colored scales with long buds adhering to stem.  Leaves opposite, dark green and shiny above, paler below with minute brown scales, oval, sometimes toothed and wider above the middle, thick, 2″-4″ long and come to an abrupt point.  Leaves grow in pairs with upper leaves pointing upward.  Showy flat-topped, white flower stalks have minute brown dots, flowers with five parts and form at top of plant.  Fruit bluish black with white powder.  Prefers wet habitats.

Figure 1: Nannyberry

Sugar Plum, Amelanchier laevis

Many subspecies.  Flowering perennial shrub, flowers April-May.  Large multi-branched shrub.  Twigs slender brown with whitish film and scattered lenticels, buds sharp pointed and pressed against the stem, bud scales shiny green to red, sharply pointed and usually hairy.  Alternate, 1″-3″ long leaves of many shapes most often oval, pointed at tip and toothed.  Five parted white flowers bloom before leaves fully develop.  Fruit reddish to purple with five conspicuous clayx lobes at the top, ripen in late July to early August.

Sugar plum
Figure 2: Sugar plum

Chokepear, Aronia melanocarpa

Flowering perennial shrub, flowers May-July.  Twigs gray to brown with scattered lenticels often covered with dense white hairs. Older stems smooth and covered with whitish film.  Buds slender and sharp-pointed, terminal bud prominent with lateral buds pressed against the twig.  Bud scales shiny with two notches at the tip.  Alternate leaves elliptic, fine-toothed, dark green and shiny above paler below usually tapering to the base and abruptly pointed. Midvein with tiny dark glands along the upper side.  Flowers five parted, white to pink in a terminal, flat-topped cluster.  Fruit black and edible.

Black Huckleberry, Gaylussacia baccata

Perennial flowering shrub, flowers July-August.  Low, multi-branched shrub, young twigs hairy, new growth covered with resinous globules.  Alternate 1″-2″ leaves point upward, generally oval, smooth except for hairs on the main vein, margins untoothed and hairy with a pointed tip, upper leaf green with lower yellow, often covered with resinous glands.  Five parted flowers pink to reddish, hang downward.  Fruit shiny, black and sweet.

Black Huckleberry
Figure 5: Black Huckleberry

Rhodora, Rhododendron canadense

Perennial, flowering, woody shrub 1’-3’ tall with yellowish twigs, buds clustered at twig end, terminal buds with flowers larger than leaf buds.  Alternate, oblong to elliptical, hairy leaves dark green above and light green beneath. Rose-purple flowers with two-lipped corolla, emerge before leaves in mid to late May. Prefers bogs and poorly drained soils.

Figure 6: Rhodora

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© 1987, 2002

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