Cornus sericea subsp. sericea

Cornus stolonifera Michx. Fl. Bor. Am. 1: 92. 1803
Cornus sericea L. Mant. 199, in part. 1771. (Nomen ambiguum.) Not C. sericea sensu Willd.
1797; Pursh, 1814; T. & G. 1840; and most others. Cornus sanguined sensu Marsh. Arbust. 36. 1785. Not C. sanguined L. 1753. Cornus alba sensu Pursh, Fl. Am. Sept. 1: 109. 1814. Not C. alba L. 1753. Cornus Purshii G. Don, Hist. 3: 399. 1834. Cornus silvestris Sesse & Moc. Fl. Mex. 28. 1893. Cornus Nelsoni Rose, Contr. U. S. Nat. Herb. 8: 54. 1903. Suida stolonifera var. riparia Rydb. Bull. Torrey Club 31: 573. 1904. Cornus alba subsp. stolonifera Wanger. in Engler, Pflanzenreich 41 (4 229 ) : 53. 1910. Cornus instoloneus A. Nelson, Bot. Gaz. 53: 224. 1912.
Cornus stolonifera riparia Visher, Bull. S. Dak. Geol. & Biol. Surv. 5: 101. 1912. Svida stolonifera A. Heller, Cat. N. Am. PI. ed. 3. 273. 1914 (nomen nudum) ; Rydb. Brittonia 1 : 94.
1931. Ossea instolonea Nieuwl. & Lunell; Lunell, Am. Midi. Nat. 4: 487. 1916. Svida instolonea Rydb. Fl. Rocky Mts. 635. 1917.
Cornus sericea subsp. stolonifera Fosberg, Bull. Torrey Club 69: 587. 1942. Cornus sericea f. stolonifera Fosberg, Bull. Torrey Club 69: 587. 1942.
Spreading shrubs, the branches often procumbent and rooting at the tips ("stoloniferous"); branchlets strigillose, bright red, the white pith occupying half the diameter; leaf-blades commonly 5-9 cm. long, 1.5-5 cm. broad, lanceolate to elliptic and ovate, acute or acuminate, cuneate at the base, nearly glabrous above, the under surface strigillose, villose-tufted in the axils of the veins, minutely papillose; veins commonly 5-7 on either side of the midrib, usually 4 or 5 arising from its basal half; petioles commonly 5-7 mm. long; inflorescence 3-6 cm. across, rather flat, the primary branches clustered, strigillose to hirtellose; pedicels mostly 1-5 mm. long; hypanthium 1.5 mm. high, grey-strigillose; sepals 0.5 mm. long; petals 2-3 mm. long; style about 2 mm. long; drupes white, 7-9 mm. in diameter, the endocarp smooth on the faces, furrowed laterally, 4-5 mm. broad, usually oblique and somewhat longer than broad.
TypB locality: "Canada."
Distribution: Newfoundland to southern New York, west to Alaska and California, south in the Rocky Mountains to Nuevo Le6n, Durango, and Chihuahua.