Classification Hierarchy
Kingdom Plantae
Subkingdom Tracheophyta
Superdivision Spermatophyta
Division Magnoliophyta
Class Magnoliopsida
Subclass Asteridae
Order Gentianales
Family Apocynaceae
Genus Apocynum
Species Apocynum androsaemifolium
Spreading dogbane

Date: June 29, 2011. Location: Rochester Cemetery (map)


Scientific Name: Apocynum androsaemifolium ([GR] Apo=away from, cyon=dog; androsaemifolium=with leaves like Androsaemum)

Common Name: Spreading dogbane

Origin: Native

Notes: This plant has evolved protection from herbivores with an unsavory taste and several toxins: a resin, apocynin (1, 2, 3) and two glycosides (cymarin and apocynein).

Additional references: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14.

Field Marks for Identification:

Flowers: June; corolla white often with pink markings, campanulate lobes flaired or recurved; inflorescence, cymes both terminal and axil flowering at the same time; fruit, slender tapering follicles.

Leaves: opposite; simple ovate-oblong, mucronate tiped and slender petioled, loosely spreading or drooping.

Stems: green or red to dark purple, secrete a white sap when cut or broken.

Glossaries of botanical terms: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Spreading dogbane Spreading dogbane Spreading dogbane