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Ridderspoor (Consolida) ridder spoore enkel. floro simplici. Esperon de chevalier afluer simple.

Ridderspoor (Consolida) ridder spoore enkel. floro simplici. Esperon de chevalier afluer simple. (1596-1610)

Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
Rieshende Narciss

Rieshende Narciss (1692)

Magdelena Rosina Funck (German, 1672–1695)
Rijpe gerst

Rijpe gerst

Barend Hendrik Thier (Dutch, 1751-1814)
Rijpe haver

Rijpe haver

Barend Hendrik Thier (Dutch, 1751-1814)
Rijpe rogge

Rijpe rogge

Barend Hendrik Thier (Dutch, 1751-1814)
Rijpe tarwe

Rijpe tarwe

Barend Hendrik Thier (Dutch, 1751-1814)
Ringelblüm

Ringelblüm (1692)

Magdelena Rosina Funck (German, 1672–1695)
Ringelblüm

Ringelblüm (1692)

Magdelena Rosina Funck (German, 1672–1695)
Ringelblüm

Ringelblüm (1692)

Magdelena Rosina Funck (German, 1672–1695)
Ringelblüm

Ringelblüm (1692)

Magdelena Rosina Funck (German, 1672–1695)
Ringlottenzweig

Ringlottenzweig (1852)

Leopold Zinnögger (Austrian, 1811-1872)
Ripe Sunflower

Ripe Sunflower (1799–1810)

Robert John Thornton (English, 1768-1837)
Riply pine.

Riply pine. (1812)

George Brookshaw (English, 1751–1823)
Riverbank Gentian (Gentiana affinis)

Riverbank Gentian (Gentiana affinis) (1924)

Mary Vaux Walcott (American, 1860-1940)
Riverbank Gentian. Gentiana affinis

Riverbank Gentian. Gentiana affinis (1925)

Mary Vaux Walcott (American, 1860-1940)
Riviergod, een draak en vier bloemen

Riviergod, een draak en vier bloemen (1688)

Anonymous
Rivularia nitida

Rivularia nitida (1843-1853)

Anna Atkins (English, 1799 – 1871)
Robinia pseudacacia v. Decaisneana

Robinia pseudacacia v. Decaisneana (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Robinia vesicaria

Robinia vesicaria (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Rock Willow (Salix petrophila)

Rock Willow (Salix petrophila) (1917)

Mary Vaux Walcott (American, 1860-1940)
Rock Willow (Salix vestita)

Rock Willow (Salix vestita) (1934)

Mary Vaux Walcott (American, 1860-1940)
Rock Willow. Salix petrophila

Rock Willow. Salix petrophila (1925)

Mary Vaux Walcott (American, 1860-1940)
Rock Wormwood (Artemisia discolor)

Rock Wormwood (Artemisia discolor) (1917)

Mary Vaux Walcott (American, 1860-1940)
Rock Wormwood. Artemisia discolor

Rock Wormwood. Artemisia discolor (1925)

Mary Vaux Walcott (American, 1860-1940)
Rock-Cress

Rock-Cress (1896-1897)

Edward Step (English, 1855-1931)
Rocket

Rocket (1896-1897)

Edward Step (English, 1855-1931)
Rocket

Rocket (1739)

Elizabeth Blackwell (Scottish, 1707–1758)
Rocky Mountain Cassiope (Cassiope mertensiana)

Rocky Mountain Cassiope (Cassiope mertensiana) (1924)

Mary Vaux Walcott (American, 1860-1940)
Rocky Mountain Cassiope. (Cassiope mertensiana)

Rocky Mountain Cassiope. (Cassiope mertensiana) (1925)

Mary Vaux Walcott (American, 1860-1940)
Rocky Mountain Kalmia (Kalmia microphylla)

Rocky Mountain Kalmia (Kalmia microphylla)

Mary Vaux Walcott (American, 1860-1940)