Vine and Cattail, 2022. Graphite on paper. Sheet 16 ¼ × 20 ½ inches, image 9 × 13 ½ inches.

Fallen Tree, 2020. Graphite on paper. Sheet 19 × 25 inches, image 11 ½ × 17 inches.

Oak Leaf, 2018. Graphite on paper. Sheet 18 ⅛ × 23 ¼ inches, image 11 × 16 ½ inches.

Autumn Leaves, 2017. Graphite on paper. Sheet 18 ⅛ × 22 ¾ inches, image 11 ⅛ × 16 inches.

Hanging Leaves, Woven Branches, 2015. Graphite on paper. Sheet 17 ⅞ × 19 ⅝ inches, image 11 ¼ × 13 ½ inches.

Bending Branches, 2014. Graphite on paper. Sheet 19 × 18 ½ inches, image 12 × 12 inches.

Vine and Branches, 2012. Graphite on paper. Sheet 22 × 26 inches, image 11 × 16 inches.

Leaves and Branches, 2011. Graphite on paper. Sheet 19 ½ × 24 ¼ inches, image 11 × 16 ¼ inches.

Milkweed and Branches, 2010. Graphite on paper. Sheet 18 ¼ × 22 ¾ inches, image 10 × 15 inches.

Flowers and Branches, 2009. Graphite on paper. Sheet 17 ½ × 21 ½ inches, image 9 ¼ × 13 ½ inches.

Hudson River Park 9, 2009. Graphite on paper. Sheet 16 ½ × 19 ¾ inches, image 7 ¼ × 11 inches.

Hudson River Park 6, 2007. Graphite on paper. Sheet 14 ¾ × 16 inches, image 6 × 8 inches.

Hudson River Park 5, 2007. Graphite on paper. Sheet 17 ½ × 21 ½ inches, image 9 ¼ × 13 ½ inches.

Hudson River Park 2, 2005. Graphite on paper. Sheet 19 ¼ × 21 ¼ inches, image 9 ¼ × 12 ½ inches.

Autumn Fugue, 2002. Graphite on paper. Sheet 20 ½ × 25 ½ inches, image 11 × 16 ½ inches.

Winter Leaves, 2001. Graphite on paper. Sheet 20 ⅝ × 25 ⅝ inches, image 11 × 16 ½ inches.

Faith in a Seed, 1999. Graphite on paper. Sheet 20 ⅝ × 25 ⅝ inches, image 11 × 16 ½ inches.

Vine and Branches, 1998. Graphite on paper. Sheet 22 ½ × 27 ¾ inches, image 12 × 18 inches.

Requiem, 1997. Graphite on paper. Sheet 21 ⅝ × 26 ⅝ inches, image 12 ⅛ × 17 ⅝ inches.

Autumn Rhythm, 1995. Graphite on paper. Sheet 21 ½ × 27 inches, image 12 × 18 inches.

Indian Point, 1994. Graphite on paper. Sheet 21 ¼ × 25 inches, image 11 × 15 inches.

Sylvan Shades, 1993. Graphite on paper. Sheet 21 ½ × 26 ¼ inches, image 10 × 14 ⅝ inches.

Noli Me Tangere, 1989. Graphite on paper. Sheet 22 ½ × 27 ½ inches, image 11 × 16 ½ inches.

New City, 1987. Graphite on paper. Sheet 17 ½ × 22 ⅜ inches, image 12 × 17 ¼ inches.

Hidden Valley, 1986. Graphite on paper. Sheet 15 ⅝ × 18 ⅞ inches, image 9 × 12 ¾ inches.

Farrugut Parkway, 1985. Graphite on paper. Sheet 17 ¼ × 21 ¼ inches, image 10 × 14 ½ inches.

In the Midst of Thistles, 1984. Graphite on paper. Sheet 13 ¾ × 17 ¾ inches, image 6 ½ × 10 ⅝ inches.

Roots in Griffin Swamp, 1984. Graphite on paper. Sheet 13 × 15 ⅝ inches, image 5 ¼ × 8 ¼ inches.

Kin to the Rocks, 1983. Graphite on paper. Sheet 17 ½ × 25 ½ inches, image 11 × 19 inches.

Shilly-Shally at Hidden Pond, 1982. Graphite on paper. Sheet 18 ¾ × 24 inches, image 11 × 17 inches.

Blinn Valley, 1981. Graphite on paper. Sheet 17 ½ × 24 ⅛ inches, image 10 × 17 ½ inches.

Teatown Twigs and Leaves, 1979. Graphite on paper. Sheet 22 × 28 ¼ inches, image 16 ¼ × 22 ½ inches.

Shadow Brook, 1978. Graphite on paper. Sheet 11 × 15 ⅞ inches, image 18 ⅛ × 22 ⅜ inches.

Vernay Swamp, 1977. Graphite on paper. Sheet 22 × 26 ⅜ inches, image 16 ½ × 20 ¾ inches.

Indian Swamp (Cattails), 1976. Graphite on paper. Sheet 23 × 27 inches, image 16 ¾ × 20 ¾ inches.

Teatown, 1976. Graphite on paper. Sheet 23 × 26 inches, image 17 ¼ × 21 ½ inches.

Indian Swamp, 1975. Graphite on paper. Sheet 22 ½ × 26 ½ inches, image 17 ¼ × 21 ½ inches.

Fernswamp (with Hanging Branch), 1975. Graphite on paper. Sheet 22 ½ × 26 ½ inches, image 17 ¼ × 21 ½ inches.

Fernswamp, 1974. Graphite on paper. Sheet 22 × 25 inches, image 17 ¼ × 21 ½ inches.