Vegetative key to the families >
Vegetative Key Vegetative key to the families
OCHREA (sheath) Present around the stem and petiole, formed from fused stipules (Fig. 25). Leaves alternate. Herbs Polygonaceae
Perianth segments 5, ± equal
Flowers unisexual. Calyx succulent or membranous at fruiting stage Muehlenbeckia
Slender, herbaceous, twining perennial. Leaves on slender petioles, ovate-cordate to broad-saggitate, acuminate, membranous; the margins crisped, mostly 2–5 cm long. Perianth succulent at fruiting stage. Care is necessary to avoid confusing this plant with Fallopia convolvulus. Coast. WSF; open forests on rivers; margins of RF. Fl. summer Muehlenbeckia gracillima